Compress PDF Online Free
Reduce PDF file size for exam portals and job applications - upload limits as low as 100 KB are common. All processing in your browser, nothing uploaded.
Drop your PDF here, or tap to select
PDF up to 50 MB
How to use
- 1
Upload your PDF
Drop or select a PDF file up to 50 MB.
- 2
Choose compression level
Medium is recommended for most scanned PDFs. High gives the smallest file.
- 3
Click Compress PDF
Wait for all pages to be processed. A progress bar shows the status.
- 4
Download the compressed PDF
See before/after size, then save.
Related tools
Merge PDF
Combine multiple PDF files into one. Drag to reorder pages. Free, private, no upload required.
Split PDF
Split a PDF by page range or extract individual pages. Free, private, processed in your browser.
Reduce to KB
Reduce any photo to exactly 20 KB, 50 KB, 100 KB or any target size for SSC, UPSC, exam forms. Free, private, no upload.
Frequently asked questions
- Why doesn't my PDF shrink much?
- Text-only or already-optimized PDFs may not compress much. This tool works best on scanned/image-heavy PDFs.
- What's the maximum PDF size?
- 50 MB. Very large PDFs with many high-resolution images may take 1–2 minutes on mobile.
- Are encrypted PDFs supported?
- Encrypted PDFs cannot be compressed. Remove the password first.
- Is my PDF uploaded anywhere?
- No. All processing happens in your browser. Your PDF is never uploaded to any server.