Compress PDF to 3 MB
Shrink your PDF to 3 MB or less without uploading it. Ideal for forms and portals with a size limit.
- No sign-up
- Free, no watermark
- Nothing leaves your device
Sent to servers: 0 BNothing left your device
About this tool
Plenty of forms and portals reject files above 3 MB. This tool finds the highest quality that fits: it first optimizes the PDF structure without touching the content and, if that is not enough, renders the pages as images and tunes the quality until the file lands just under 3 MB.
You see the size before and after, prior to downloading. If your PDF is already under 3 MB, you get it back optimized, never degraded. Everything runs in your browser: the file is never uploaded.
How it works
- 01
Drop your PDF.
- 02
Confirm the 3 MB target (you can change it).
- 03
Press Compress and check the size before and after.
- 04
Download. Nothing left your device.
Questions
What if my PDF is already under 3 MB?
Only the lossless optimization runs. We never return a file larger than the original or degrade a PDF that already fits.
Will I lose quality compressing to 3 MB?
It depends on the starting point. If pages have to be rendered as images, text stops being selectable and sharpness drops in a controlled way; the tool picks the highest quality that fits and tells you before you download.
Why didn't it reach exactly 3 MB?
Very long or image-heavy documents can have a readable minimum above the target. In that case you get the smallest file that is still readable, clearly flagged.