About Compress PDF
This tool shrinks your PDFs by re-rendering each page at a quality and resolution you choose. Every file shows its original size, new size and the exact percentage saved, so you always know the trade-off before you download — perfect for email attachments with strict size limits.
Batch mode compresses many PDFs in one pass, and everything happens locally in your browser. Confidential documents never leave your device, and there is no queue even during peak traffic.
How to use Compress PDF Files
- Add your PDFs
Drop one or many PDF files. Each shows its size and page count in a list ready to process.
- Set quality and size
Pick a quality level and an optional maximum page dimension. Lower values produce smaller files.
- Compress and download
Click Compress, review the savings shown next to each file, then download individually or save everything as a ZIP.
Frequently Asked Questions
How much smaller can my PDF get?
Results vary with content: scanned documents often shrink 50-80% at moderate settings, while already-optimised PDFs shrink less. The tool shows the exact saving per file so you can adjust quality until the size is right.
Will compression make text blurry?
At sensible settings (quality 70+, reasonable dimensions) text stays crisp on screen and in print. If small print looks soft, raise the quality or the maximum dimension and compress again — re-running is free and instant.
Can I compress password-protected PDFs?
No. Encrypted PDFs cannot be opened without their password. Unlock the files first, then compress them here.