Compress PDF
Reduce PDF size with a choice of compression strength.
Upload a PDF, pick a compression mode, and download a smaller file. The document is rebuilt; savings depend on images and how already-optimized the original is.
Compression modes
- High quality — lighter reduction, more detail kept in images
- Balanced — typical trade-off for sharing and email
- Maximum compression — smallest size; images may look softer
Limits
- One PDF up to 10 MB
- Encrypted PDFs are not processed without unlocking them first
- Digital signatures become invalid after rebuild; check complex forms in the result
Files are stored temporarily for processing, then removed.
Security and privacy
Encryption at rest
Files are encrypted during storage with AES-256-GCM using a unique key per file
Auto-deletion
Uploaded and processed files are removed after the session ends
Temporary sessions
Processing sessions expire automatically and are not kept as a permanent archive
Protected download links
Downloads require a short-lived access token — not a public permanent URL
Recommended tools
Repair PDF
Attempt to fix corrupted or damaged PDF structure.
Protect PDF
Add password encryption and permission limits to a PDF.
PDF to Word
Extracts text and structure from PDF and creates DOCX
Word to PDF
Converts DOCX and DOC documents to PDF
Unlock PDF
Remove printing, copying, and editing restrictions from a PDF.
FAQ
It mainly affects images inside the PDF. Stronger modes lower resolution more. Text usually stays readable, but already-optimized files may barely shrink.
It mainly affects images inside the PDF. Stronger modes lower resolution more. Text usually stays readable, but already-optimized files may barely shrink.
A single PDF up to 10 MB in size is accepted, and the result is reassembled as PDF version 1.4. Digital signatures are no longer valid after changing the document, and complex interactive elements should be checked in the finished file.
Yes. Files are transferred over a secure connection, encrypted while stored on the server, and automatically deleted. Flimpa does not store documents permanently and does not use them to train models.