Compress PDF

Shrink a PDF for email and uploads by re-saving it with optimised compression.

Upload the PDF.
It is re-saved with optimised compression.
Download the smaller file.

Re-save your PDF with deflated streams and a rebuilt, garbage-collected structure to bring its size down for email and uploads — while keeping the document fully intact and selectable.

Compress PDF guides

Preventing data loss How to Compress a PDF Without Corrupting or Breaking It Compression occasionally leaves a broken file. Learn how to compress a PDF without corrupting it, why corruption happens during compression, and how to verify safely. 6 min read

More repairpdffile tools

Repair PDF Recover a corrupted or unreadable PDF — we rebuild its structure and hand back a clean, working file. Free, no watermark. PDF to JPG Export each page of a (repaired) PDF as a JPG image. Merge PDF Combine PDFs into one document — useful for reassembling recovered pages.

PDF Repair FAQ

How much smaller?

PDFs with redundant or uncompressed data shrink most; already-optimised files change little.

Still selectable?

Yes — text and structure are preserved; only storage is optimised.