Compress PDF
Reduce PDF file size online for free. No signup, no watermark.
Tap to upload or drop a file
.pdf files · Max 100MB
How it works
Upload
Drop .pdf
Compress
Pick a level
Download
Smaller file
About PDF compression
PDF compression re-serializes the document structure, removing unused objects, optimizing streams, and eliminating redundant data. This can reduce file size by 10-60% depending on the document's content.
FAQ
Is this free?
Yes, completely free. No signup, no watermarks, no hidden fees.
Is my file safe?
Files are compressed on our servers and immediately deleted. We never store or share your files.
What's the maximum file size?
You can compress files up to 100MB.
Does compressing a PDF reduce image quality?
Our compressor re-serializes the PDF structure and removes unused objects. Embedded images are preserved at their original quality — only structural overhead is reduced.
How much can I compress a PDF?
Results vary widely. PDFs with redundant metadata or inefficient structure can shrink by 30-60%. Already optimized PDFs may see smaller improvements.
Will forms and links still work?
Yes. Interactive elements, bookmarks, and hyperlinks are preserved in the compressed output.