Compress PDF
Reduce scan size by compressing page images.
Drop your PDF files here
Or choose them from your device to get started.
50 MB total · Up to 150 pages · No uploads
Rebuild pages as compressed images. Text will no longer be selectable; links, forms and signatures are not preserved. Keep your original.
How to use Compress PDF
Choose your files
Add your PDF documents from your phone or computer.
Choose your settings
Rebuild pages as compressed images. Text will no longer be selectable; links, forms and signatures are not preserved. Keep your original.
Save and get on with it
Choose “Compress PDF”, then download the result. Your original files stay unchanged.
What this tool does
Reduce scan size by compressing page images. It runs locally in your browser so the selected document is not uploaded for processing.
Privacy and security
Your file stays on your device during processing. We do not collect PDF contents, filenames or text entered into tool settings. Keep your original file until you have checked the result.
Supported files and limits
Use a valid, unencrypted PDF up to 50 MB total. Merge PDF and Images to PDF accept up to 100 files. Compression and PDF to JPG support up to 150 pages. Browser memory and device performance can reduce practical limits.
Output quality and limitations
Review the preview before downloading. Some operations can change document structure: compression rasterizes pages, PDF to text needs selectable text, and interactive forms, links or signatures may not survive every transformation.
Example use cases
- Prepare a smaller document for email or online submission.
- Organize pages before sharing a final copy.
- Finish a quick document task without creating an account.
Last updated: September 13, 2026 · Limits and behavior are shown before processing.
Questions & answers
Will compression change my document?
Compression converts pages into JPG images inside a new PDF. It can make scanned documents smaller, but removes selectable text, links and form functionality. Already compact PDFs may not shrink.
Why is my download the original?
If image compression does not reduce the file size, the tool offers your unchanged original instead. Text-based or already optimized files may not shrink.
Where do my files go?
Your files stay in your browser. PDF processing runs on your device, and file contents are not uploaded to a server. Closing the page clears the current workspace.