Compress PDF
Your file is processed locally in your browser — nothing is uploaded.
Note: compression converts pages to images, so text in the output cannot be selected or searched.
Before
After
Saved
| Size before | |
|---|---|
| Size after |
Compress PDF shrinks your documents dramatically by rendering pages at the resolution and quality you choose — ideal for email attachments or sites with upload size limits. The tool runs entirely in your browser, so your file never leaves your device.
How to use
- Pick a PDF file from your device; a preview of its first page appears along with its original size.
- Choose a compression level: Strong for attachments, Medium for archiving, or Higher quality for printing.
- Press Compress and wait while all pages are processed.
- Compare the first page and the size before and after, side by side, then press the download button to save the compressed file.
Frequently asked questions
Why is the text no longer selectable after compression?
Compression renders each page into an image to achieve the biggest possible savings, so text in the output cannot be selected, searched or copied — though it looks exactly like the original.
Which compression level should I pick?
Choose Strong for email attachments where size matters most, Medium for archiving and on-screen reading, and Higher quality when you will print the file or it contains fine detail like maps and diagrams.
Why is the output larger than the original?
Some PDFs are already optimized or purely text-based, so converting their pages to images can make them bigger. In that case the tool warns you and offers the original file for download instead.
Is my file uploaded anywhere?
No. Every compression step runs locally on your device, and your file never leaves your browser.