This is the final major update of Version 1! We are adding several new features and optimisations along with changing our docker image from alpine to debian to better support some of these new features. Some highlight changes are:

• SVG file support for saved signatures
• advanced compression parameters and better optimization levels
• PDF to Video Slideshow
• eBook to PDF
• linearize PDF
• add support for PDF/A-3b, PDF/X formats improve current PDF/A conversion
• add PDF to EPUB/AZW3

As always special thanks to all the contributors who helped with this release espicially @Ludy87 and @balazs-szucs

V2 news!

We are releasing V2.0 later today, it will initially be based off an older V1 release however, with huge changes and improvements of its own so please look forward to trying it out!

What’s Changed

Breaking Changes

• feat(docker-runtime): unified Debian-based images, dynamic path resolution & enhanced UNO/LibreOffice handling by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4880

Enhancements

• feat(multitool): Add duplicate page action with undo/redo and harden command stack #4322 by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4333
• feat(signature): add SVG file support for saved signatures by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4742
• feat(compress): add advanced compression parameters and better optimization levels by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4703
• feat(convert): add PDF to Video converter (FFmpeg) with MP4/WebM support by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4704
• feat(database): add email notifications for backups/imports & backup verification by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4253
• feat(sort): enhance file sorting and order handling by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4813
• feat(conversion): add eBook to PDF via Calibre (EPUB/MOBI/AZW3/FB2/TXT/DOCX) by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4644
• feat(compress): expose linearize PDF option on the UI by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4843
• feat(crop): add auto-crop functionality to detect and remove white space by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4847
• feat(config): enforce minimum qpdf version requirement by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4907
• feat(util): enhance logging behavior in ProcessExecutor by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4908
• feat(pdf-conversion): add support for PDF/A-3b, PDF/X formats improve current PDF/A conversion by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4844
• feat(pdf-EPUB): add PDF to EPUB/AZW3 conversion functionality via Calibre by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4947

Minor Enhancements

• Split pdf by sections improvement by @PingLin8888 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4111
• 🤖 format everything with pre-commit by stirlingbot by @stirlingbot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4403
• Update 3rd Party Licenses by @stirlingbot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4719
• perf(scanner-effect): Optimize fake-scanner effect with multithreading by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4614
• fix(api): return 204 No Content on failed PDF filters; add OpenAPI responses and safe resource handling by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4406
• Update 3rd Party Licenses by @stirlingbot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4770
• fix(security): sanitize image handling to prevent DOM XSS in PdfContainer by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4267
• refactor(core): centralize temp file handling in CompressController via TempFileManager by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4629
• refactor(core): parallel, timeout-safe external dependency probes with version gating + tests by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4640
• refactor(api): adjust default values and extend schema for stamp and watermark requests by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4632
• fix(pipeline): Update isZip method to validate against filename extensions, and keep comic archives zipped by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4741
• 🤖 format everything with pre-commit by stirlingbot by @stirlingbot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4771
• test(core): add comprehensive unit tests for controllers, services, models, and utilities by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4160
• [#4262] Added date and time to a stamp by @Luis-EncoraDev in https://github.com/Stirling-Tools/Stirling-PDF/pull/4431
• 🤖 format everything with pre-commit by stirlingbot by @stirlingbot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4807
• fix(ui): correct CSS visibility typo; clean up spelling/grammar across codebase by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4661
• fix(security): reset attempt counter when window elapsed (treat equality as elapsed) by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4820
• refactor(common,core,proprietary): standardize Locale.ROOT usage for case/format & safer string handling by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4628
• 🤖 format everything with pre-commit by stirlingbot by @stirlingbot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4839
• refactor(common, core, proprietary): migrate boxed Booleans to primitive booleans and adopt is* accessors to reduce null checks/NPE risk by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4153
• refactor(core): simplify resource management with try-with-resources by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4873
• refactor(exceptions): RFC 7807 Problem Details, ResourceBundle i18n, and error factory pattern by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4791
• fix(frontend/pdfjs): ensure CID character rendering via CMaps & stabilize PDF compare/preview by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4762
• refactor(common): remove unused temp directory & HTML unzip helpers, prune imports by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4857

Docker Updates

• build(deps): bump sigstore/cosign-installer from 3.10.0 to 4.0.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4717
• build(deps): bump actions/upload-artifact from 4.6.2 to 5.0.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4745
• build(deps): bump docker/metadata-action from 5.8.0 to 5.9.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4851
• build(deps): bump step-security/harden-runner from 2.13.1 to 2.13.2 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4853
• build(deps): bump docker/setup-qemu-action from 3.6.0 to 3.7.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4854
• ci(docker,workflow): install bash in images, keep /bin/sh POSIX, and simplify PR test-build deps by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4879
• build(deps): bump actions/checkout from 5.0.0 to 5.0.1 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4931
• build(deps): bump actions/checkout from 5.0.1 to 6.0.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4962
• build(deps): bump docker/metadata-action from 5.8.0 to 5.9.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4987

Translation Changes

• feat(i18n): add German translations by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4786
• feat(localization): update Hungarian translations by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4798
• feat(i18n): update Polish translations by @urbaned121 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4659
• feat(i18n): add German translations by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4796
• Update and improve French translations in messages_fr_FR.properties by @FdaSilvaYY in https://github.com/Stirling-Tools/Stirling-PDF/pull/4755
• :globe_with_meridians: Sync Translations + Update README Progress Table by @stirlingbot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4764
• Fix French formatting and grammar by @OteJlo in https://github.com/Stirling-Tools/Stirling-PDF/pull/4775
• 🌐 Update messages_ru_RU.properties by @TheShadowAngel in https://github.com/Stirling-Tools/Stirling-PDF/pull/4774
• feat(scripts): enhance translation progress tool with CLI flags, TOML management, and CI-friendly output by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4801
• feat: Update Brazilian Portuguese translation by @lspaulucio in https://github.com/Stirling-Tools/Stirling-PDF/pull/4198
• Improve French translations and update ignore_translation.toml by @FdaSilvaYY in https://github.com/Stirling-Tools/Stirling-PDF/pull/4780
• 🌐 Sync Translations + Update README Progress Table by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4783
• Update Hungarian translations by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4698
• Update messages_it_IT.properties by @albanobattistella in https://github.com/Stirling-Tools/Stirling-PDF/pull/4697
• Updated pt_PT translation by @RiCatarino in https://github.com/Stirling-Tools/Stirling-PDF/pull/4655
• Update messages_it_IT.properties by @albanobattistella in https://github.com/Stirling-Tools/Stirling-PDF/pull/4793
• Improve French translations and update ignore_translation.toml by @FdaSilvaYY in https://github.com/Stirling-Tools/Stirling-PDF/pull/4799
• Update messages_nl_NL.properties by @Stephan-P in https://github.com/Stirling-Tools/Stirling-PDF/pull/4519
• Update messages_ar_AR.properties : enhace arabic translation by @hamzakhalem in https://github.com/Stirling-Tools/Stirling-PDF/pull/4414
• Bulgarian lang update/optimizations by @nimdassdev in https://github.com/Stirling-Tools/Stirling-PDF/pull/4705
• Update messages_nl_NL.properties by @Stephan-P in https://github.com/Stirling-Tools/Stirling-PDF/pull/4811
• Fix French translations and formatting in properties file by @FdaSilvaYY in https://github.com/Stirling-Tools/Stirling-PDF/pull/4842
• [Fix] Spanish (es_ES) Translation Improvements and Fixes by @vvillarreal-cfee in https://github.com/Stirling-Tools/Stirling-PDF/pull/4838
• :globe_with_meridians: Sync Translations + Update README Progress Table by @stirlingbot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4878
• 🌐 Update messages_ru_RU.properties by @TheShadowAngel in https://github.com/Stirling-Tools/Stirling-PDF/pull/4938

Development Tools

• build(deps): bump peter-evans/create-pull-request from 7.0.8 to 7.0.9 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4967

Other Changes

• build(deps): bump github/codeql-action from 3.30.6 to 4.30.9 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4718
• build(deps): bump actions/setup-node from 5.0.0 to 6.0.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4716
• build(deps): bump com.github.junrar:junrar from 7.5.5 to 7.5.7 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4715
• build(deps): bump org.sonarqube from 6.3.1.5724 to 7.0.0.6105 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4714
• build(deps): bump pdfboxVersion from 3.0.5 to 3.0.6 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4713
• build(deps): bump ch.qos.logback:logback-core from 1.5.19 to 1.5.20 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4748
• build(deps): bump ch.qos.logback:logback-classic from 1.5.19 to 1.5.20 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4747
• build(deps): bump io.micrometer:micrometer-core from 1.15.4 to 1.15.5 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4746
• build(deps): bump github/codeql-action from 4.30.9 to 4.31.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4743
• build(deps): bump actions/download-artifact from 5.0.0 to 6.0.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4744
• build(deps): bump softprops/action-gh-release from 2.3.4 to 2.4.1 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4676
• build(deps): bump pypdf from 6.1.1 to 6.1.3 in /testing/cucumber in the pip group across 1 directory by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4725
• build(deps): bump io.swagger.core.v3:swagger-core-jakarta from 2.2.38 to 2.2.39 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4672
• build(deps): bump springSecuritySamlVersion from 6.5.5 to 6.5.6 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4712
• build(deps): bump com.unboundid.product.scim2:scim2-sdk-client from 4.0.0 to 4.1.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4621
• build(deps): bump com.squareup.okhttp3:okhttp-bom from 5.1.0 to 5.2.1 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4671
• Delete .github/workflows/sonarqube.yml by @Frooodle in https://github.com/Stirling-Tools/Stirling-PDF/pull/4763
• build(deps): bump org.springframework.boot:spring-boot-dependencies from 3.5.6 to 3.5.7 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4767
• build(deps): bump org.springframework.boot from 3.5.6 to 3.5.7 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4769
• ci(workflows): add PR comment–driven label management with authorized users by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4650
• test: Add comprehensive unit tests for GetInfoOnPDF, covering metadata extraction, encryption, permissions, compliance, validation, and error handling scenarios by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4706
• refactor(tests): replaced redundant setups, simplified exception handling, and optimized code readability. by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4710
• build(deps): bump actions/github-script from 7.0.1 to 8.0.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4777
• fix(ci): 🛡️mitigate CVE-2025-6176 by pinning brotli to patched commit and upgrading dev dependency pins by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4802
• build(deps): bump actions/dependency-review-action from 4.8.0 to 4.8.1 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4674
• Add ‘break-change’ label and update release categories by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4806
• chore(config): refine testing directory glob patterns in .files.yaml by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4600
• build(deps): bump com.github.jk1.dependency-license-report from 2.9 to 3.0.1 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4818
• build(deps): bump github/codeql-action from 4.31.0 to 4.31.2 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4819
• build(deps): bump com.squareup.okhttp3:okhttp-bom from 5.2.1 to 5.3.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4817
• refactor(tests): Eliminate test flakiness through deterministic implementation by @balazs-szucs in https://github.com/Stirling-Tools/Stirling-PDF/pull/4708
• chore(tests): add comprehensive web/controller and security service tests; stabilize AttemptCounter timing by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4822
• build(deps): bump commons-io:commons-io from 2.20.0 to 2.21.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4852
• build(deps): bump softprops/action-gh-release from 2.4.1 to 2.4.2 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4850
• build(deps): bump org.springdoc:springdoc-openapi-starter-webmvc-ui from 2.8.13 to 2.8.14 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4855
• build(deps): bump io.micrometer:micrometer-core from 1.15.5 to 1.16.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4856
• build(deps): bump com.google.zxing:core from 3.5.3 to 3.5.4 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4925
• build(deps): bump org.apache.commons:commons-lang3 from 3.19.0 to 3.20.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4927
• build(deps): bump com.squareup.okhttp3:okhttp-bom from 5.3.0 to 5.3.1 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4928
• build(deps): bump github/codeql-action from 4.31.2 to 4.31.3 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4930
• build(deps): bump actions/dependency-review-action from 4.8.1 to 4.8.2 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4932
• Update project version from 1.5.0 to 1.6.0 by @Frooodle in https://github.com/Stirling-Tools/Stirling-PDF/pull/4923
• build(deps): bump pypdf from 6.1.3 to 6.4.0 in /testing/cucumber in the pip group across 1 directory by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4983
• build(deps): bump github/codeql-action from 4.31.3 to 4.31.5 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4981
• build(deps): bump io.swagger.core.v3:swagger-core-jakarta from 2.2.40 to 2.2.41 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4979
• build(deps): bump com.diffplug.spotless from 8.0.0 to 8.1.0 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4966
• build(deps): bump org.sonarqube from 7.0.0.6105 to 7.1.0.6387 by @dependabot[bot] in https://github.com/Stirling-Tools/Stirling-PDF/pull/4964
• deps(build): centralize Logback version management and update to 1.5.21 by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4868
• docs(README): add new tool descriptions and features overview by @Ludy87 in https://github.com/Stirling-Tools/Stirling-PDF/pull/4870

New Contributors

• @FdaSilvaYY made their first contribution in https://github.com/Stirling-Tools/Stirling-PDF/pull/4755
• @OteJlo made their first contribution in https://github.com/Stirling-Tools/Stirling-PDF/pull/4775
• @RiCatarino made their first contribution in https://github.com/Stirling-Tools/Stirling-PDF/pull/4655
• @Luis-EncoraDev made their first contribution in https://github.com/Stirling-Tools/Stirling-PDF/pull/4431
• @urbaned121 made their first contribution in https://github.com/Stirling-Tools/Stirling-PDF/pull/4659
• @Stephan-P made their first contribution in https://github.com/Stirling-Tools/Stirling-PDF/pull/4519
• @lspaulucio made their first contribution in https://github.com/Stirling-Tools/Stirling-PDF/pull/4198
• @hamzakhalem made their first contribution in https://github.com/Stirling-Tools/Stirling-PDF/pull/4414
• @vvillarreal-cfee made their first contribution in https://github.com/Stirling-Tools/Stirling-PDF/pull/4838

Full Changelog: https://github.com/Stirling-Tools/Stirling-PDF/compare/v1.5.0…v1.6.0