Compress PDF to 100 KB
To compress pdf to 100 kb, drop your image below - ShrinkTo hits 100 KB exactly using a quality binary search, free and entirely in your browser.
Drop your PDF here
or browse files · paste with Ctrl/⌘+V
PDF files
Pages are re-rendered as optimized images, which dramatically reduces size for image-heavy and scanned PDFs.
How to compress pdf to 100 kb
- 1
Add your image
Drag a file in, paste it, or click to browse. You can batch multiple at once.
- 2
Choose your settings
Pick a target size or format, then ShrinkTo compresses it to 100 KB instantly in your browser.
- 3
Download
Save the result, or download the whole batch as a ZIP.
Frequently asked questions
How do I compress pdf to 100 kb?
Drop your image into the box on this page. ShrinkTo automatically adjusts quality (and dimensions if needed) to land at 100 KB on the first try, then you download it.
Will the image lose quality?
ShrinkTo keeps quality as high as possible for your target by tuning the encoder precisely, and only downscales if the size can't be reached otherwise. For most photos the difference is invisible.
Are my files uploaded to a server?
No. Everything runs locally in your browser - your files never leave your device. You can confirm this by opening your browser's Network tab while you use the tool.
Is it free? Do I need to sign up?
It's completely free with no signup, no email, and no limits. Because the work happens on your own device, there's no server cost and nothing to charge for.