Troubleshooting PDF operations
Common issues and practical checks.
The link cannot be opened
Confirm the URL begins with HTTP or HTTPS and returns an actual PDF. A Google Drive link may require Chrome permission or access to the shared file. URL downloads are limited to 200 MB and can time out after 30 seconds.
Compression did not reduce the file size
Results depend on source content. An already compressed PDF may not shrink further. Review Quality and optional image downsampling settings.
Merge is unavailable
Merge requires at least two PDF files. Private PDF Compressor allows no more than 50 files or 200 MB of combined input.
Daily limit reached
Free provides 2 completed PDF operations total across Compress, Split and Merge per local day. Wait for the next local calendar day or use a valid Pro license.
License activation failed
Check the license key and internet connection. License activation contacts the external licensing service. If the problem persists, consult Support.
An operation fails or is cancelled
Try again with a valid PDF and check available device memory. Cancelled or failed processing should not consume the daily quota. If the issue repeats, record the operation, file size, and error message without sending the document itself.