About Compress PDF
Reduce the size of your PDF files directly in the browser, without sending your documents to a server.
How to use Compress PDF
- 1Upload one or more PDFs via drag and drop.
- 2Choose a compression level: Light (max quality, modest savings), Medium (good balance) or Aggressive (big savings, slight quality loss).
- 3Optional: enable "Remove annotations" to strip comments and reduce size further.
- 4Compression starts automatically. Before/after stats are shown for each file.
- 5Download each compressed PDF, or in batch mode, download the ZIP.
Tips
- Medium level is the best trade-off for most PDFs containing images.
- For text-only PDFs, compression gains are limited — significant savings come mainly from embedded images.
- Remove annotations if the PDF comes from a collaborative review with many comments.
Free vs paid limits
Free: sign-in required, 1 file at a time. Starter+: batch up to 20 files.
Related tools
OneKitTools TeamUpdated 2.21.4