Help center
Answers to the problems people hit most often.
“Could not be read” errors
The file is either corrupted or encrypted with a password. Encrypted documents must be unlocked before other tools can modify them.
The tab freezes on a large file
Local processing uses your device memory. Split very large documents first, or lower the resolution when rasterising pages.
My extracted text is empty
The PDF is a scan — an image of text rather than text itself. Use OCR PDF to add a searchable text layer.
A tool asks for a provider
That tool needs a native engine that browsers do not have. The panel lists every provider that can service it and the secret name required to activate it.