Compress PDF Online – Reduce PDF File Size Free
Reduce the size of a PDF for email and uploads. Choose the compression level, see the size before and after, and download. Files never leave your device.
Paste SVG code (or a Base64 data:image string) and convert it to PNG or PDF.
About Compress PDF
Large PDFs are hard to email and slow to upload. This tool lowers the resolution and quality of page images to shrink the file and shows exactly how much space you saved. Pick Recommended for a good balance, Low for the best quality or Maximum for the smallest file. Everything is done locally, so confidential documents stay on your device.
How to compress a PDF online
- Click “Select PDF Files” or drag your PDF into the box.
- The tool runs instantly in your browser, adjust the options if any appear.
- Download your result.
Key features
- Three compression levels
- Shows the size before and after
- Option to keep text selectable
- No upload and no sign-up
Frequently asked questions
How much can a PDF be compressed?
Scanned and image-heavy PDFs often shrink by 50–90%. PDFs that are mostly text are usually small already, and the tool tells you if no saving is possible.
Will text still be selectable after compression?
With Recommended and Maximum, pages become compressed images, so text is not selectable. Tick the option to keep text if you need it, though savings are smaller.
Why does my PDF not get smaller?
If a PDF is already optimized or mostly text, rebuilding it would not reduce its size. The tool detects this and does not hand you a bigger file.
Are my files uploaded to a server?
No. Everything runs inside your browser, so your files never leave your device.
Is it free?
Yes. All tools are free to use and no sign-up is required.
Why use pdfXimg?
- Private: files are processed in your browser and never uploaded.
- Free: no sign-up and no daily limits.
- Works everywhere: phone, tablet or computer, in English, Arabic and French.