How it works
- Add your PDF. This page starts with the 300 KB target selected.
- The tool tries 150 DPI first, then lower resolutions down to 48 DPI, and stops as soon as the file is under the target.
- If the target cannot be reached, you get the smallest result with a note. If even that is larger than your original, the tool says so and gives no file.
When this size fits
- This size works for a short document or a few scanned pages.
- If your PDF is a long scan, expect to land near the tool floor rather than the target.
- Pages become images, so text in the result cannot be selected or searched.
What a test showed
- One-page A4 scan, 474 KB: the result was 266 KB, under the target.
- Ten-page A4 scan, 4.7 MB: the result was 274 KB, also under 300 KB.
- The ten-page run ended at the smallest result this tool produced for that file, so small text is softer than in the original.
Test numbers come from synthetic files made for this page: a one-page A4 scan (474 KB) and a ten-page A4 scan (4.7 MB), both noisy 150 DPI images. Real files behave differently, so treat them as a guide.
Limits
- Pages become JPEG images: selectable text, links, forms and signatures are lost.
- Sizes use 1 KB = 1,000 bytes. Up to 30 MiB and 100 pages per file.