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Master PDF Editor

Master PDF Editor is a full solution for work with PDF documents

Code Industry

net.code_industry.MasterPDFEditor
View on Flathub ↗
  • Edit PDF text and images, Mark and annotate, Merge and split.
  • JavaScript and Dynamic XFA form support.
  • Validation Forms and Calculate Values.
  • Adding a digital signature and Signing PDF Documents.
  • Fast and simple PDF forms fill out.
  • Changing font attributes (size, family, color, etc).

Screenshots

Master PDF Editor screenshot

Observed history

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Upstream releases

Release notes supplied by the developer. These dates are not Flathub package publication times.

5.9.9911 Aug 2026
  • Implemented the ability to create initials with a transparent background when loading from an image.
  • Added saving the list of devices in the “Select Scanners” dialog window once the initial search for devices is canceled on Linux systems.
  • Added new command-line parameters for the Master PDF Editor Windows installer. You can now disable update checks, select the interface language, and specify the installation directory.
  • Improvements for document comparison.
  • Enhanced printing files with mixed-size pages.
  • Improvements for the deskew function.
  • Enhancements and fixes for the document encryption function.
  • Improvements and fixes for undoing redaction.
  • Resolved an issue which caused the progress bar to freeze after scanning.
  • Fixed a bug related to initials being added incorrectly in some documents, and improved the initials display.
  • Resolved an issue where the device list was handled incorrectly when rescanning on macOS.
  • Fixed an error which occurred on Linux systems when installing Qt 5-based packages.
  • Resolved various display issues with headers, footers, watermarks, backgrounds, and their preview areas under certain settings.
  • Fixed a bug that prevented opening folder shortcuts when selecting and saving documents on Windows.
  • Fixed an issue that resulted in incorrect page sizes when scanning on Linux.
  • Resolved an issue that prevented saving via the “Save As” menu item on Fedora.
  • Fixed the incorrect page orientation when printing documents using versions 2.4.14 and later of the CUPS printing system.
  • Resolved an error which made width and height values swap in custom page sizes in printer settings.
  • Fixed an issue where content on certain pages rotated incorrectly when deskewing during the optimization and optical character recognition of scanned pages.
  • Resolved an issue with non-functional hotkeys for adding bookmarks and improved how hotkeys function.
  • Resolved a bug in the Qt 6-based installation package which caused Windows File Explorer to freeze when editing and deleting files.
  • Various minor fixes and performance enhancements.
5.9.9815 Apr 2026

No release notes supplied.

5.9.976 Mar 2026

No release notes supplied.

5.9.9415 Sept 2025

No release notes supplied.