Drop your PDF here
Up to 80 MB in total. Free: 2 completions every 24 hours.
◉ Processing on your device
DELUMA PDF
Compress a PDF without it leaving your computer
Shrink your PDF in the browser without sending the file to the cloud. Free, fast, and the document stays under your control.
How to use
- 01
Choose your PDF.
- 02
Run compression and compare file sizes.
- 03
Download the result you prefer.
Your file stays on your device
The tool processes PDF bytes in your browser. Your account and allowance may be checked on the server without sending the document. Saving online or sending by email are optional actions requiring an explicit choice.
Frequently asked questions
Are my files sent to a server?
The tool processes PDF bytes in your browser. Your account and allowance may be checked on the server without sending the document. Saving online or sending by email are optional actions requiring an explicit choice.
What is the free allowance?
Free allows 2 completed PDFs every 24 hours. Pro allows up to 500 documents every 30 days. Opening this page does not use your allowance; the application’s completion rules still apply.
Will every PDF get smaller?
No. An already optimized PDF may shrink very little. Compare sizes before downloading.
Does compression change quality?
Basic mode optimizes the structure. Advanced modes that reduce images can change quality; review the option and result.