Think of 200 KB as a budget per page. One page gets the whole 200 KB — in our test that meant 116 dpi, clear on screen. Three text pages share about 65 KB each, which is roughly what a 72–80 dpi page costs. At six pages each page gets about 33 KB, and our test file dropped to 48 dpi. The table below shows the exact numbers.
| Pages | Test file | Result | Resolution reached | Readability |
|---|---|---|---|---|
| 1 | ID-style scan, 1.0 MB | 187 KB | 116 dpi · q72 | clear on screen |
| 2 | photo pages, 1.4 MB | 196 KB | 105 dpi · q72 | clear on screen |
| 3 | colour text scan, 2.5 MB | 185 KB | 80 dpi · q50 | normal text readable |
| 6 | grey text scan, 6.1 MB | 193 KB | 48 dpi · q72 | hard to read |
| 10 | mixed scan, 5.0 MB | 198 KB | 37 dpi · q72 | hard to read |
Measured on 16 October 2026 with this tool in browser mode on our own test PDFs (synthetic A4 scans with paper noise, which is harder to compress than a clean office scan). Your numbers will differ; cleaner scans get higher resolution. “q” is the JPG quality the tool settled on. Readability labels are a rough guide: 100 dpi and up is clear on screen, 70–100 dpi keeps normal-size text readable, below 50 dpi only large text survives.
Up to three scanned pages stay comfortably readable (72–80 dpi or better in our tests). Six pages fit, but text gets small and soft.
This tool always lands under the number you type. If you used another tool, the difference may be 1,000 vs 1,024 bytes per KB. Here, 200 KB means 200,000 bytes.
In browser mode the file is processed on your device and never uploaded. Server mode exists as an alternative, and does not keep files.
If the form accepts JPG and the document is a single page, a JPG is often smaller. For more than one page, a PDF keeps them together.
All PDF tools · Guides · About · Contact · Privacy · © 2017–2026 LeDeuxions