About Compress a PDF to 100 KB
A 100 KB limit is the strictest one most upload forms ask for, and it usually applies to a single page: a signature sheet, a photo ID, a one-page certificate. This page opens the target-size compressor with 100 KB already chosen, so all that is left is to add your file and press the button.
Reaching 100 KB takes strong compression, so expect the pictures inside the PDF to lose some sharpness. Pages of plain text and clean black-and-white scans shrink the most; colour photographs shrink the least. A document of several pages may simply not fit, and then you are told so instead of getting a broken file.
The file is sent to our server only for the job and is deleted automatically after 30 minutes.
How to use Compress a PDF to 100 KB
- 01
Add your PDF (guests can use files up to 10 MB).
- 02
Keep the target on 100 KB.
- 03
Press the button and wait a few seconds.
- 04
Download the result and zoom in to check the small print before you upload it.
See all options of this tool →
Common uses
Frequently asked questions
Why is my PDF still above 100 KB?
Some files are too heavy to get that small without turning unreadable, for example a PDF with several colour photos. You then receive the smallest version the tool could make, with a note that 100 KB was not reached. Try 200 KB, remove pages you do not need, or rescan in black and white.
Will the text still be selectable?
Yes. Compression works on the images inside the file, so real text stays selectable. A scanned page is one big image, though, so fine print on a scan can turn soft at this size. Zoom in and check it.
What if my PDF is already under 100 KB?
You get the same file back untouched, so a small file never gets worse for nothing.
Can I aim for a different size?
Yes. The size options on the tool run from 100 KB up to 2 MB, and Custom accepts any value between 20 KB and 20,000 KB.