KaruPDF
KaruPDF support
Getting started and troubleshooting help for the KaruPDF Windows desktop application.
Supported systems and availability
The upcoming Microsoft Store release targets Windows 11 on x64 computers. KaruPDF v0.1.0 is being prepared for publication and is not yet available in Microsoft Store.
Arrange and export pages
Choose Open PDF to begin, then Add PDF to include another document. Select pages individually or using page numbers and ranges. Reorder, rotate, duplicate or delete pages as needed. Use Undo and Redo to revisit changes, Extract selected to save selected pages, or Export PDF to save the output document.
Keep your result
The workspace lasts for the current session. Export your result before closing KaruPDF. Page changes leave your original source documents unchanged.
A PDF will not open
Check that the file is available locally and your Windows account can read it. Password-protected PDFs are not supported. Note the error message and try another PDF to see whether the problem affects one file or all files.
Export does not complete
Check that the output contains at least one page, choose a writable destination and confirm there is enough free disk space. If the destination file is open in another application, close it or choose a different filename before trying again.
PDF compatibility
KaruPDF is a page composition tool, not a text, form or signature editor. Export does not preserve annotations, comments, links, document metadata, navigation or accessibility tagging. Optional-content layers are unsupported. Review exported documents before sharing them.
Contact support
Email support@karusystems.com with your Windows version, KaruPDF version, the exact error message and the steps that reproduce the problem. Describe what you expected and what happened. Remove personal information from screenshots and do not attach sensitive PDFs. Read the privacy policy before sending support information.