Compress PDF
Shrink a PDF's file size by re-rendering pages at a chosen quality level — great for PDFs you just need to view or share.
How to use
- 1
Drop or select the PDF you want to compress.
- 2
Choose a compression level — low, medium, or high.
- 3
Click Compress PDF to download the smaller file.
- 4
Check the reported size reduction; try a higher level if you need it smaller.
Features
- Three compression levels to balance size vs. quality
- Often shrinks large PDFs significantly
- Clear disclosure that output text won't be selectable
- Processed entirely in your browser
Frequently asked questions
Why isn't the text selectable in my compressed PDF?
Compression works by re-rendering each page as a JPEG image to reduce size, which means the output has no selectable text layer — it's best for viewing or sharing, not editing.
What compression level should I choose?
"Low" keeps the best visual quality with modest size savings; "High" gives the smallest file but noticeably softer images — "Medium" is a good default.
What if the compressed file isn't smaller?
Some PDFs are already efficiently encoded; try a higher compression level, or the original may already be near-optimal.
Is my PDF uploaded anywhere?
No, compression happens entirely in your browser.