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Release notes

v4.0.0 - preview​

Release date: February 25, 2026

Breaking changes​

  • Support for Windows-Legacy projects has been removed. Starting with this version, the package is compatible only with Windows projects.

v.3.25.2​

Release date: December 16, 2025

We are constantly working to improve your UiPath Document Understanding experience. Even though there are no significant changes this release, we made minor improvements to the product.

v.3.25.0​

Release date: October 28, 2025

We are constantly working to improve your UiPath Document Understanding experience. Even though there are no significant changes this release, we made minor improvements to the product.

v3.24.0​

Release date: August 25, 2025

We fixed an issue where Polish diacritics were missing when using the Export PDF Page As Image activity.

v3.22.0​

Release date: April 16, 2025

We are constantly working to improve your UiPath Document Understanding experience. Even though there are no significant changes this release, we made minor improvements to the product.

v3.20.2​

Release date: November 26, 2024

Bug fixes​

Invisible text elements were not removed when processing native PDF files.

v3.20.1​

Release date: October 3, 2024

We are constantly working to improve your UiPath Document Understanding experience. Even though there are no significant changes this release, we made minor improvements to the product.

v3.19.1​

Release date: 27 May 2024

Bug fixes​

Fixed an issue where the Read PDF with OCR activity was throwing an error indicating multiple languages of expression.

Erratum October 14, 2024 - If you are upgrading from a previous version, you need to first install the package version 3.19.1. After successfully installing, follow one of these steps to implement the fix:

  • Remove the Read PDF with OCR activity from your workflow and add it again.
  • Alternatively, you can manually input Image in the OCR Image property field within the Read PDF with OCR activity in your OCR engine.

When installing PDF.Activities for the first time with this version, no additional steps are required to implement this fix.

v3.16.0​

Release date: 24 October 2023

We are constantly working to improve your UiPath Document Understanding experience. Even though there are no major significant changes with this release, we made sure to bring minor improvements and accessibility fixes to our product.

v3.14.1​

Release date: 7 June 2023

We are constantly working to improve your UiPath Document Understanding experience. Even though there are no major significant changes with this release, we made sure to bring minor improvements and accessibility fixes to our product.

v3.10.2​

Release date: 7 June 2023

We are constantly working to improve your UiPath Document Understanding experience. Even though there are no major significant changes with this release, we made sure to bring minor improvements and accessibility fixes to our product.

v3.14.0​

Release date: 26 April 2023

New features & Improvements​

The UiPath.PDF.Activities package can now be used with right-to-left languages.

The following activities have been upgraded and can also be used cross-platform:

  • Set PDF Password
  • Merge PDFs
  • Get PDF Page Count
  • Extract PDF Text
  • Extract PDF Images
  • Extract PDF Page Range

If you want to use the cross-platform PDF related activities, you can find them in the UiPath.DocumentUnderstanding.Activities package. For non cross-platform workflows, you can continue using the activities inside the UiPath.PDF.Activities package.

v3.11.0​

Release date: 15 December 2022

New features & Improvements​

The Studio user interface is now available in Traditional Chinese.

v3.10.1​

Release date: 24 October 2022

New features & Improvements​

Updates have been made on the UiPath.PDF.Activities package, by centralizing code in a single location, hence the UiPath.PDF.Activities package now throws a single exception, UiPath.DocumentUnderstanding.Digitizer.Exceptions.PdfException, eliminating these exceptions: IncorrectPasswordException or UnexpectedStructureException.

We have upgraded the web framework of the UiPath.PDF.Activities package.

v3.6.0​

Release Date: 9 May 2022

Improvements​

The UiPath.PDF.Activities package has been upgraded to.NET5 core. This change implies having the.NET5 installed on your machine if the package is run within a non-Windows legacy workflow.

v3.4.1​

Release Date: 4 October 2021

Improvements​

The UiPath.PDF.Activities package has been upgraded to.NET5. While both.NET versions continue to be supported, the.NET5 projects can only work on 64-bit architectures.

v3.4.0​

Release Date: 26 March 2021

Improvements​

The processing of certain PDF files has been improved.

v3.3.0​

Release Date: 28 September 2020

Improvements​

Starting with this release, the package is validated for use in C# projects.

v3.2.2​

Release Date: 4 May 2020

New Features and Improvements​

A new activity, Get PDF Page Count, that can return the total number of pages of a given PDF file is now available.

v3.1.0​

Release Date: 8 November 2019

New Features and Improvements​

A new input option, PreserveFormatting, is now available for the Read PDF Text activity, allowing you to maintain the formatting of the file throughout the extraction process.

The UiPath.PDF.Activities package can now be used on machines that have the FIPS Compliance Flag activated.

Known Issues​

  • As the PDF standard contains some functionalities which are not FIPS compliant (related to document signing and password protection), exceptions might occur. The exception is thrown by the activities at run-time when files with non-FIPS compliant content are processed.