Adds an optional MCP server (proprietary module) that exposes Stirling's
PDF operations and AI capabilities to MCP clients. Off by default, zero
footprint when disabled.
### What
- New `/mcp` endpoint: streamable-HTTP + JSON-RPC 2.0; 8 tools
(describe_operation, pages/convert/misc/security category tools, AI,
upload, download).
- Runs real operations over an internal loopback; results returned
inline as base64 (small) or by fileId (large).
### Auth (two modes)
- OAuth2 resource server: RFC 9728 protected-resource metadata, RFC 8707
audience binding, JWKS, `mcp.tools.read/write` scopes; binds each token
to a provisioned Stirling account.
- API-key mode: reuses Stirling per-user `X-API-KEY` (no IdP needed).
### Security
- Per-user file ownership in FileStorage: async/queued writes scoped to
the submitting user; legacy/owner-less files stay readable.
- Admin allow/block list controls which operations are exposed.
- Python engine gated behind a shared secret (`X-Engine-Auth`).
- MCP filter chain is isolated and cannot weaken the main app's
security.
- Hardened: no upstream error-body leakage, log injection sanitized,
fileId path/sidecar enumeration blocked.
### Config / footprint
- Disabled by default (`mcp.enabled=false`); all beans
`@ConditionalOnProperty`.
---
## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### Translations (if applicable)
- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have run `task check` to verify linters, typechecks, and tests
pass
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#7-testing)
for more details.
# Description of Changes
Hooks up the (alpha) PDF Editor backend to the AI engine Edit Agent via
an intermediary API which is easier for the agent to call. It suffers
from all the same issues that the PDF Editor does in actually editing
the text, but should also benefit from any fixes to that.
It also adds protection against the underlying tools misbehaving by
hanging, and fixes a hanging bug in the PDF Editor.
---------
Co-authored-by: EthanHealy01 <80844253+EthanHealy01@users.noreply.github.com>
# Description of Changes
Have the Java send a list of enabled endpoints to the AI engine so it
can intelligently respond to the user that the tool does exist but is
disabled on the server so it can't acutally run the operation, instead
of the current behaviour where it sends the API call back and then 503
errors because the execution fails when the URL is disabled.
<img width="380" height="208" alt="image"
src="https://github.com/user-attachments/assets/5842fb2e-2e55-45a5-8205-25515636daae"
/>
---------
Co-authored-by: EthanHealy01 <80844253+EthanHealy01@users.noreply.github.com>
# Description of Changes
Fixes share-link navigation for SSO users. Reported on v2.9.2 with
`SSOAutoLogin: true`: clicking a `/share/<token>` link in an email
redirected the user to the home page after SSO instead of the shared
file.
## Root cause
Three compounding issues had to be fixed together; the first was the
initial symptom but the other two only surfaced during live
verification.
1. **Spring Security blocked `/share/<token>` for unauthenticated
users.** The route wasn't in `RequestUriUtils.isPublicAuthEndpoint`, so
the server 302'd straight to `/login` before React could load
`ShareLinkPage`. The share URL was lost because `NullRequestCache` is
configured and never persisted the original destination.
2. **`httpErrorHandler` full-page-redirected to `/login?from=<path>` on
any unhandled 401** (fired by `LicenseContext`, `AppConfig`, etc. during
normal ShareLinkPage mount). That *did* preserve the return path — but
**Spring Security strips query strings from `/login`** (302 to bare
`/login`), so `?from=` never reached React. Confirmed via `curl -i
http://localhost:8080/login?from=xyz` → `Location: /login`.
3. **`AuthCallback.tsx` unconditionally `navigate("/")`** after the
SAML/OAuth round-trip, discarding any intended destination.
## Fix
**Backend** — make `/share/<token>` a public SPA bootstrap, data APIs
stay protected:
- `RequestUriUtils.isPublicAuthEndpoint` — permits `^/share/[^/]+/?$`
(tight regex, single token segment only; `/share/<token>/anything` stays
protected).
- `ReactRoutingController` — dedicated `@GetMapping("/share/{token}")`
mirroring `/auth/callback`.
- `/api/v1/storage/share-links/**` remains behind Spring Security with
its existing `canAccessShareLink` check.
**Frontend** — persist the return path across full-page redirects via
`sessionStorage` (same-origin, survives the SSO round-trip):
- `httpErrorHandler.ts` — stashes current pathname to
`stirling_post_login_path` before the 401 → `/login` redirect.
- `springAuthClient.ts` — new `isSafePostLoginRedirect` /
`setPostLoginRedirectPath` / `consumePostLoginRedirectPath` helpers
(rejects protocol-relative URLs and auth-plumbing paths to guard against
open-redirect abuse).
- `Login.tsx` — on explicit user sign-in, read path from
`location.state` or `?from=` query and stash it; don't clobber an
already-stashed value.
- `AuthCallback.tsx` — consume the stashed path (single-use) and
`navigate(target)` instead of always `/`.
---
## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### Translations (if applicable)
- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have run `task check` to verify linters, typechecks, and tests
pass
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#7-testing)
for more details.
---------
Co-authored-by: EthanHealy01 <80844253+EthanHealy01@users.noreply.github.com>
# Description of Changes
Redesign AI engine so that it autogenerates the `tool_models.py` file
from the OpenAPI spec so the Python has access to the Java API
parameters and the full list of Java tools that it can run. CI ensures
that whenever someone modifies a tool endpoint that the AI enigne tool
models get updated as well (the dev gets told to run `task
engine:tool-models`).
There's loads of advantages to having the Java be the one that actually
executes the tools, rather than the frontend as it was previously set up
to theoretically use:
- The AI gets much better descriptions of the params from the API docs
- It'll be usable headless in the future so a Java daemon could run to
execute ops on files in a folder without the need for the UI to run
- The Java already has all the logic it needs to execute the tools
- We don't need to parse the TypeScript to find the API (which is hard
because the TS wasn't designed to be computer-read to extract the API)
I've also hooked up the prototype frontend to ensure it's working
properly, and have built it in a way that all the tool names can be
translated properly, which was always an issue with previous prototypes
of this.
---------
Co-authored-by: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>
Co-authored-by: EthanHealy01 <80844253+EthanHealy01@users.noreply.github.com>
### Motivation
- Allow operators to configure a pipeline base directory and multiple
watched folders so the pipeline can monitor several directories and
subdirectories concurrently.
- Ensure scanning traverses subdirectories while skipping internal
processing folders (e.g. `processing`) and preserve existing behavior
for finished/output paths.
- Expose the new options in the server `settings.yml.template` and the
admin UI so paths can be edited from the web console.
### Description
- Added new `pipelineDir` and `watchedFoldersDirs` fields to
`ApplicationProperties.CustomPaths.Pipeline` and kept backward
compatibility with `watchedFoldersDir`
(app/common/src/main/java/stirling/software/common/model/ApplicationProperties.java).
- Resolved pipeline base and multiple watched folder paths in
`RuntimePathConfig` and exposed `getPipelineWatchedFoldersPaths()`
(app/common/src/main/java/stirling/software/common/configuration/RuntimePathConfig.java).
- Updated `FileMonitor` to accept and register multiple root paths
instead of a single root
(app/common/src/main/java/stirling/software/common/util/FileMonitor.java).
- Updated `PipelineDirectoryProcessor` to iterate all configured watched
roots and to walk subdirectories while ignoring `processing` dirs
(app/core/src/main/java/stirling/software/SPDF/controller/api/pipeline/PipelineDirectoryProcessor.java).
- Exposed the new settings in `settings.yml.template` and the admin UI,
including a multi-line `Textarea` to edit `watchedFoldersDirs`
(app/core/src/main/resources/settings.yml.template,
frontend/src/proprietary/components/shared/config/configSections/AdminGeneralSection.tsx).
- Adjusted unit test setup to account for list-based watched folders
(app/common/src/test/java/stirling/software/common/util/FileMonitorTest.java).
### Testing
- Ran formatting and build checks with `./gradlew spotlessApply` and
`./gradlew build` using Java 21 via
`JAVA_HOME=/root/.local/share/mise/installs/java/21.0.2
PATH=/root/.local/share/mise/installs/java/21.0.2/bin:$PATH ./gradlew
...`, but both runs failed due to Gradle plugin resolution being blocked
in this environment (plugin portal/network 403), so full
compilation/formatting could not complete.
- Confirmed the code compiles locally was not possible here; unit test
`FileMonitorTest` was updated to use the new API but was not executed
due to the blocked build.
- Changes were committed (`Support multiple pipeline watch directories`)
and the repository diff contains the listed file modifications.
------
[Codex
Task](https://chatgpt.com/codex/tasks/task_b_69741ecd17c883288d8085a63ccd66f4)
# Description of Changes
This pull request refactors and improves the logic for converting
human-readable size strings (like "10MB", "2.5GB") to bytes in the
`GeneralUtils` utility class. The main enhancement is switching from
imprecise floating-point arithmetic to `BigDecimal` for more accurate
and robust conversions, and centralizing the conversion logic to reduce
code duplication and improve maintainability.
**Improvements to size conversion logic:**
* Replaced all floating-point arithmetic in `convertSizeToBytes` with
`BigDecimal` operations to ensure precision and to handle large values
more safely.
* Introduced a new private method `toBytes(BigDecimal value, int
powerOf1024)` to centralize and standardize the conversion from size
units to bytes, including error handling for negative and excessively
large values.
* Added constants `KIB` and `LONG_MAX_DECIMAL` for improved readability
and maintainability of size calculations.
* Added a helper method `parseSizeValue(String value)` to consistently
parse size values as `BigDecimal`.
* Updated imports to include `BigDecimal` and `RoundingMode` for the new
conversion logic.
---
## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### Translations (if applicable)
- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
# Description of Changes
This pull request completes the removal of Thymeleaf template engine
support and documentation from the Stirling-PDF codebase and developer
guides, reflecting the project's full migration to a React-based
frontend. It removes all references to Thymeleaf in code, configuration,
and documentation, and updates guides to focus exclusively on the React
SPA architecture. This streamlines the codebase and clarifies the
development workflow for contributors.
**Codebase cleanup: Thymeleaf removal**
- Removed all commented-out Thymeleaf dependencies and related
configuration beans from `build.gradle` and `AppConfig.java`
(`app/common/build.gradle`,
`app/common/src/main/java/stirling/software/common/configuration/AppConfig.java`)
[[1]](diffhunk://#diff-2a1a21726f33b05d16451237c68d6df91a5f4a58419d839715f3f1538a9a14aeL32)
[[2]](diffhunk://#diff-70792df9a0ab5675ded888c9eb8e2815c780d7b39f4bda8cf2da51d1b336899aL67-L76).
- Fully commented out (as a precursor to future deletion) the
`FileFallbackTemplateResolver` and `InputStreamTemplateResource`
classes, which were only used for Thymeleaf template resolution
(`app/common/src/main/java/stirling/software/common/configuration/FileFallbackTemplateResolver.java`,
`app/common/src/main/java/stirling/software/common/model/InputStreamTemplateResource.java`)
[[1]](diffhunk://#diff-e2bc7614074316b972355cb7dda47b98f75b00eb6b2ca4f143a680ab2803dcd8L1-L49)
[[2]](diffhunk://#diff-ab10ee12d8de8fb77759e931170373d388bde04bad6d0e42a0ab674355ef7ef3L1-L40).
**Documentation updates: React-only focus**
- Removed all instructions and references to migrating or developing
with Thymeleaf templates in `DeveloperGuide.md` and `ADDING_TOOLS.md`,
including detailed Thymeleaf usage examples, migration steps, and
translation key usage in templates
[[1]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL5-R5)
[[2]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL41-L43)
[[3]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL103-L105)
[[4]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL157)
[[5]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL312)
[[6]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL404-R396)
[[7]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL451-L505)
[[8]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL530-R467)
[[9]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL585-L669)
[[10]](diffhunk://#diff-ccd22fcbec8148152c8c77b85fbfe2633a6707b5ad50c2ef88fa87e2c47ea88fL699-L709)
[[11]](diffhunk://#diff-e2f8148ea620602b7761e8ee24afeac1c577476630528e210fe0b22e950016ddL3-R3)
[[12]](diffhunk://#diff-e2f8148ea620602b7761e8ee24afeac1c577476630528e210fe0b22e950016ddL267-R267).
- Updated architecture descriptions in `CLAUDE.md` to reflect that the
frontend is now exclusively a React SPA and that Thymeleaf templates
have been fully replaced
[[1]](diffhunk://#diff-6ebdb617a8104a7756d0cf36578ab01103dc9f07e4dc6feb751296b9c402faf7L131-R132)
[[2]](diffhunk://#diff-6ebdb617a8104a7756d0cf36578ab01103dc9f07e4dc6feb751296b9c402faf7L143-L144).
**Labeler configuration update**
- Removed labeler rules for files related to the old Thymeleaf-based web
controllers and UI directories, as these are now obsolete
(`.github/labeler-config-srvaroa.yml`).
These changes ensure the codebase and documentation are consistent with
the new React-only frontend approach, reducing maintenance overhead and
potential confusion for contributors.
---
## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### Translations (if applicable)
- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
# Description of Changes
Note on Simple Java Mail:
- SJM contains Angus/Jakarta Mail in it.
- SJM is a very thin layer on Angus Mail; see here:
https://github.com/bbottema/simple-java-mail
- SJM gives high level methods to more reliably parse in email via Angus
Mail, but also contains lots of other interesting features.
- SJM is Apache 2 licensed
This pull request updates the email processing utilities to add support
for parsing and validating Outlook MSG files, refactors the
`EmlProcessingUtils` utility class to use instance methods and improved
resource management, and enhances the handling and styling of generated
email HTML. The changes also introduce external CSS resource loading
with a fallback mechanism, and update dependencies to support MSG file
parsing.
**MSG file support and validation:**
- Added `simple-java-mail` and `outlook-module` dependencies to enable
EML and MSG file parsing, and updated validation logic to recognize and
accept MSG files by checking their magic bytes.
(`app/common/build.gradle`, `EmlProcessingUtils.java`)
**Refactoring and modernization of `EmlProcessingUtils`:**
- Converted static methods and fields in `EmlProcessingUtils` to
instance methods/fields, improving testability and future extensibility.
(`EmlProcessingUtils.java`)
**Enhanced HTML/CSS styling for email rendering:**
- Updated HTML generation to use consistent formatting and improved
style variable usage, and refactored CSS injection to load from an
external resource (`email-pdf-styles.css`) with a synchronized cache and
a minimal fallback if the resource is missing.
(`EmlProcessingUtils.java`)
**Attachment and content rendering improvements:**
- Improved the formatting of meta-information (e.g., CC, BCC, Date) and
attachment sections in generated email HTML, and ensured more robust
handling of empty or missing content. (`EmlProcessingUtils.java`)
**General code cleanup and logging:**
- Added SLF4J logging for error handling when loading CSS resources, and
cleaned up imports and method signatures for clarity and
maintainability. (`EmlProcessingUtils.java`)
<img width="367" height="991" alt="image"
src="https://github.com/user-attachments/assets/0cfb959c-da92-4cff-9e52-ff4ab7fa806e"
/>
<!--
Please provide a summary of the changes, including:
- What was changed
- Why the change was made
- Any challenges encountered
Closes #(issue_number)
-->
---
## Checklist
### General
- [X] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [X] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [X] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [X] I have performed a self-review of my own code
- [X] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### Translations (if applicable)
- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [X] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
---------
Signed-off-by: Balázs Szücs <bszucs1209@gmail.com>
# Description of Changes
This PR fixes resource leaks and memory issues in PDF processing by
implementing proper resource management patterns throughout the
codebase.
## Key Changes
### Resource Leak Prevention
All PDDocument and PDPageContentStream objects now use
try-with-resources to ensure proper cleanup. Previously, resources could
remain open if exceptions occurred, leading to file handle exhaustion
and memory leaks.
### Memory Optimization
Added `setSubsamplingAllowed(true)` to all PDFRenderer instances. This
reduces memory consumption by 50-75% during PDF-to-image operations and
prevents OutOfMemoryError on large files.
**Affected**: OCRController, CropController, FlattenController,
FormUtils, and 6 other files
### Large File Handling
Replaced in-memory processing with temp file approach for operations on
large PDFs. This prevents loading entire documents into memory.
**Example (GetInfoOnPDF.java):**
- Before: Loaded entire PDF into ByteArrayOutputStream
- After: Saves to temp file, streams from disk, cleans up in finally
block
**Also changed**: PrintFileController, SplitPdfBySizeController
### PDPageContentStream Construction
Standardized constructor calls with explicit parameters:
- AppendMode: Controls content placement
- compress: true for stream compression
- resetContext: true for clean graphics state
This prevents graphics state corruption and provides better control over
rendering.
### Exception Handling
- Added NoSuchFileException handling for temp file issues
- Check if response is committed before sending error responses
- Better error messages for temp file cleanup failures
### Code Quality
- Replaced loops with IntStream where appropriate
(SplitPdfBySectionsController)
- Updated deprecated API usage (PDAnnotationTextMarkup →
PDAnnotationHighlight)
- Added null checks in Type3FontLibrary
- Removed redundant document.close() calls
### Dependencies
Added `org.apache.pdfbox:pdfbox-io` dependency for proper I/O handling.
<!--
Please provide a summary of the changes, including:
- What was changed
- Why the change was made
- Any challenges encountered
Closes #(issue_number)
-->
---
## Checklist
### General
- [X] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [X] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [X] I have performed a self-review of my own code
- [X] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### Translations (if applicable)
- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)
### UI Changes (if applicable)
- [X] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [X] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
---------
Signed-off-by: Balázs Szücs <bszucs1209@gmail.com>
## Summary
- add a `PdfJsonConversionService` that serializes PDF text, fonts, and
metadata to JSON and rebuilds a PDF from the same structure
- expose REST endpoints for `/pdf/json` and `/json/pdf` conversions
using the existing convert API infrastructure
- define JSON model classes capturing document metadata, font
information, and positioned text elements
## Testing
- `./gradlew spotlessApply` *(fails: plugin
org.springframework.boot:3.5.4 unavailable in build environment)*
- `./gradlew build` *(fails: plugin org.springframework.boot:3.5.4
unavailable in build environment)*
------
https://chatgpt.com/codex/tasks/task_b_68f8e98d94ac8328a0e499e541528b6f
---------
Co-authored-by: EthanHealy01 <ethan.healy.21@gmail.com>
Google drive oss. Shouldn't have any effect on pr deployment.
Mainly the removal of the old integration via backend.
I have added the picker service and lazy loading of the required google
dependency scripts when the necessary environment variables have been
implemented.
---------
Co-authored-by: Connor Yoh <connor@stirlingpdf.com>
Co-authored-by: James Brunton <jbrunton96@gmail.com>
Anthony Stirling