Live tool
Compress PDF
Make a PDF easier to email, upload, and share. PDFit keeps the original page order and automatically returns the original document if compression cannot safely reduce its size.
Choose your document
Anonymous limit: one file, 10 MB, up to 150 pages.
- Text remains selectable and the original page count is preserved.
- The result is never larger than the uploaded document.
- Temporary input and output files are deleted automatically.
Quick guide
How to compress a PDF online
Reduce PDF file size for email, forms, and uploads while preserving page order and selectable text.
Upload a PDF
Choose one document up to 10 MB and 150 pages.
Choose a compression level
Use Balanced, Strong, or Print quality for the intended destination.
Compare and download
Download the smaller result; PDFit returns the original if compression would make it larger.
When this tool helps
- Fit a PDF under an email attachment limit
- Shrink a scan before a portal upload
- Optimize a document for faster mobile sharing
Common questions
Can PDF compression make a file larger?
PDFit does not deliver a larger replacement. If safe compression cannot reduce the file, the original document is returned.
Which PDF compression mode should I use?
Balanced suits most documents, Strong targets screen viewing and smaller files, and Print keeps more image detail.