Compress PDF to 100KB
Get your PDF under 100KB, the size the form asks for. Your file never leaves your device.
- Never leaves your device
- No limits
- No sign-up
- No watermark
Quick answer: To compress a PDF to 100KB, select the file and click "Compress PDF to 100 KB". The tool shrinks images first and, if needed, page resolution, until the file is 100KB or smaller. Everything happens in your browser.
How to do it in 3 steps
- 1Select the PDF or drop it in the area above.
- 2Check that the maximum size is 100KB (already selected).
- 3Click Compress PDF to 100KB and download the file.
Why use Pronto Arquivo
Exact target size
Pick 100KB, 200KB, 500KB, 1MB, 5MB or any value. The tool tunes quality until the file fits.
Never uploaded
Compression runs in your browser. ID cards, certificates and application documents never touch a server.
Text kept whenever possible
We shrink images first, so text stays selectable. Pages are only turned into images when there's no other way to reach the size, and we tell you.
No size or usage limits
PDFs over 100MB or 200MB aren't blocked. The only limit is your device's memory.
Other sizes
Guides
When the PDF can't reach 100KB
Documents with many scanned pages may not fit in 100KB without becoming unreadable. In that case we show the smallest possible size. Split the PDF or upload only the pages required.
PDF size limits for online applications
Government, university and job portals often cap uploads at 100KB, 200KB, 500KB or 1MB. Choose that size and the tool finds the best quality that fits, so the upload doesn't get rejected.
Frequently asked questions
How do I make a PDF smaller than 100KB?
Select the file on this page and click "Compress PDF to 100 KB". The result is 100KB or less whenever that's possible without losing readability.
Will the text stay selectable?
Yes, when shrinking images is enough. If pages must be converted to images to fit, we tell you in the result.
Is my file uploaded to a server?
No. All compression happens in your browser.
Is it free?
Yes, no usage limits, no sign-up and no watermark.