PDF Compressor (Reduce File Size)
Shrink a PDF by recompressing each page as an image. Your file never leaves your device. To drop pages you do not need first, use the PDF Merge, Split & Extract tool.
🔒 Runs in your browser · Your data is never sent to a server
You can also drag and drop a PDF file here
Pick a single .pdf file.
Please note
- Each page becomes an image, so text can no longer be selected, searched or copied.
- Links, bookmarks and form fields are also lost.
- Photo-heavy and scanned PDFs shrink a lot; text-heavy PDFs may even get larger.
Result
How to use
- Choose a PDF file.
- Pick a compression level (Light, Standard, or Strong).
- Press "Compress". Files with many pages take longer.
- Check the before/after sizes, then download the result.
Glossary
dpi (resolution)
Dots per inch. A lower value loses image detail but produces a smaller file.
JPEG compression
Lossy compression suited to photos. Lower quality means a smaller file but more noise around text.
Encrypted (password-protected) PDF
A PDF that requires a password to open. This tool cannot process password-protected PDFs.
FAQ
Will text remain selectable after compression?
No. Each page is re-compressed as an image, so text can no longer be selected, searched or copied, and links, bookmarks and forms are lost.
Which PDFs compress best?
PDFs made mostly of photos or scans shrink the most. Text-based PDFs may even become larger after being converted to images.
Is my PDF uploaded to a server?
No. Everything is processed in your browser and the file never leaves your device.
Share this page