Compress PDF
Keep document structure by default.
Local PDF tool
Compress PDF
Drop your file here
50 MB · up to 40 pages · Processed on your device
or click to browse — files stay on your device
Reduce a PDF file size while keeping the document clear.
Compress PDF
Local file
Discard your changes?
Your file stays on this device, but edits in this workspace will be lost.
Ready to download
How it works
Everything Happens On Your Device
- 01
Select your file(s)
Everything is read straight into your browser.
- 02
Processed on your device
No file uploads for processing, processing servers, or upload queue.
- 03
Download the result
A separate file — your original stays untouched.
Private browser guide
How can you compress a PDF without uploading it?
SoraFiles reduces the file size while keeping the document clear. If stronger compression could affect important PDF features, it automatically uses a safer method. If the PDF is already efficient, SoraFiles keeps the original instead of creating a larger file.
At the highest strength, an optional smaller-file setting can soften images in eligible PDFs. Documents with detected text or important features use a safer method, and signed documents are kept unchanged.
Stronger image compression can reduce detail. Keep the original and check the downloaded copy before sharing.
Questions
No. Your PDF is processed on this device.
SoraFiles uses a safer method for documents with detected text or important features. Check text selection and any features you need in the downloaded copy.