Datalogics Adobe PDF Library Service Bulletin 2026-APR-APDFL18-1
For Windows, WindowsARM, Linux, Linux ARMv8, Mac, Mac ARMv8, and AIX
Thursday, April 16, 2026
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Datalogics APDFL v18.0.5PlusP2c - Now available for download!
This version introduces the following features:
• Add support for PAdES (B-T) baseline electronic signatures to .NET/Java interfaces.
This enhancement enables creation and validation of signatures that include trusted timestamps, ensuring long-term integrity and compliance with ETSI PAdES baseline standards.
• Add support for PAdES-EPES policy-based electronic signatures to .NET/Java interfaces.
This enhancement enables signatures to include an explicit signature policy identifier, ensuring that signing operations adhere to defined organizational or regulatory requirements.
This version contains the following changes:
• Updated zlib from 1.3.1 to 1.3.2 to mitigate CVEs.
• Updated sqlite3 from 3.48.0 to 3.51.0 to mitigate CVE-2025-3277, CVE-2025-29087, CVE-2025-29088, CVE-2025-52099, CVE-2025-6965, CVE-2025-7709.
• Updated libexpat from 2.7.4 to 2.7.5 to mitigate CVE’s.
• Updated libpng from 1.6.55 to v1.6.56 to mitigate CVE-2026-33416 and CVE-2026-33636.
• Updated OpenSSL from 3.5.5 to 3.5.6 to mitigate CVE-2026-31790 (RSA KEM) and CVE-2026-31789 (heap buffer overflow).
• With this release, the Maven package version has been increased to 18.62.0.
• With this release, the NuGet package version has been increased to 18.62.0.
This version resolves the following bugs:
• SF46861 – Fix for malformed Brotli output, including broken xref streams and predictor warnings, ensuring Brotli-encoded documents open cleanly and display responsively in PDFViewer.
• SF47422 – Rendering of Text using a Type 0 font that’s not CJK based has been improved to use a fallback font when possible.
• SF47424 – Improves output for Flattening a XFA Text Field using RichText where the text uses multiple different font size attributes spanning multiple pages using Forms Extension.
• SF47426 – Support for opening PDFs with problematic ObjStm’s has been improved.
• SF47434 – Corrects a crash that could occur processing a file purposely crafted file with an long string.
• SF47439 – Corrects a problem where Color Conversion of Forms on a page could unexpectedly alter them when shared on a different page.
• SF47448 – Corrects a crash that could occur rendering complicated paths in rare situations.
• SF47460 – Corrects an issue where some Static XFA documents would not be Flattened AsIfPrinted correctly in some cases using Forms Extension.
• SF47461 – Corrects an issue where the Caption of a Text Field shared across pages of an XFA document could end up being placed multiple times on the Flattened document using Forms Extension.
• SF47462 – Corrects an issue where some Static XFA documents would not be Flattened correctly in some cases using Forms Extension.
• SF47463
o Addresses a problem where XFA Text fields using Javascript could have new lines removed in the Flattened output unexpectedly using Forms Extension.
o Corrects a Stack Overflow that could occur flattening some documents using Javascript in rare scenarios using Forms Extension.
• SF47466 – Corrects a problem where Flattening a XFA document with a ChoiceList field with a null picture clause could mishandle the data in the Flattened output using Forms Extension.
• SF47467 – Corrects a problem where the WordFinder Quad coordinates of L2R text could be incorrect in some cases.
• SF47468 – Improves output for Flattening a XFA Text Field using RichText where the text uses multiple different spacing attributes spanning multiple pages using Forms Extension.
• SF47479 – Corrects a problem where XFA Static Text elements using a Processing Instruction could be ignored in the Flattened output when using Forms Extension.
• SF47499 – Opening of corrupted PDF documents has been improved to be more resilient.
• SF47506 – Corrects an intermittent crash that could occur when using PDPageDrawContentsToWindowWithParams().
• SF47520 – The minimum macOS version supported is now 12.x (Monterey). Note this version is no longer supported by Apple.
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