Compress PDF to 500 KB
500 KB leaves room for clear scans of several pages, so stamps and signatures stay readable.
Nothing is uploaded. Your files stay private.
Popular sizes
Opens the tool with the right settings already chosen.
How to compress a PDF
Three steps, about ten seconds.
- 01
Add your PDF
Drop it in the box above, or tap to choose from your phone or computer.
- 02
Pick a target
Choose a size like "Under 200 KB" for portals, or keep the best-quality default.
- 03
Download
Check the new size and save the file. Done.
Compressing to 500 KB
500 KB leaves enough room for several clear scanned pages, so stamps and signatures usually stay easy to read.
Quikdo starts with the sharpest setting and only lowers image quality as far as needed to get under 500 KB. If your PDF is already under the limit, it's left as it is.
Frequently asked questions
How many pages fit in 500 KB?
It depends on the scans. A handful of A4 pages scanned in colour usually fit with readable text; photo-heavy pages take more room.
How do I make a PDF smaller?
Drop the PDF in. Quikdo re-saves the pictures inside it at a lower resolution and quality, which is where most of the size is. Pick a target like 200 KB if a portal has a limit.
How do I get a PDF under 200 KB?
Choose the 200 KB target before you drop the file in. Quality is lowered only as far as needed to get under it.
How do I convert a PDF from MB to KB?
Set a target in KB, such as 500 KB or 200 KB, and compress. A 3 MB scan often ends up a few hundred kilobytes.