Compress PDF
Make PDF files smaller for email, forms and portals, right in your browser. Pick a size limit or keep the recommended setting.
- Free
- No sign-up
- On your device
How it works
Choose a PDF from your device or drop it on the page.
Pick a size limit, or keep the recommended setting.
Check the new size and download the PDF. No account needed.
When to use it
Application portals
Fit certificates, transcripts and IDs into the size limits of school, job and government portals.
Email attachments
Send scanned contracts and reports without hitting attachment limits.
Phone scans
Shrink multi-page scans from phone scanner apps that save every page as a large photo.
What to expect
The tool first re-saves the PDF without changing what it shows, which keeps text selectable. When that is not enough, each page is redrawn as a sharp JPEG at its original page size, which is what makes scans and photo-heavy PDFs much smaller.
Up to 100 MB and 300 pages. Password-protected PDFs must be unlocked first. Files are processed in your browser and disappear when you leave the page.
Frequently asked questions
How do I reduce the size of a PDF?
Choose the PDF and keep Recommended, or pick a size limit such as 1 MB or 200 KB. The tool shows the new size before you download it.
Will the text stay sharp?
Yes at the recommended setting, which renders pages at about 150 dpi. Very small limits lower the resolution, so check the result before you submit it.
Why can I no longer select text?
To make a PDF much smaller, pages are saved as images. If text was kept, the result says so; otherwise the pages look the same but behave like a scan.
Does it work on my phone?
Yes. It runs in mobile browsers on Android and iPhone. Very large PDFs may need a computer because phones have less memory.
Is my PDF uploaded?
No. The PDF is read and compressed by your browser on this device. It is never sent to Codia, and it is gone when you close or reload the page.
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