Getting under 100KB
- Drop your PDF — the 100 KB target is preselected.
- Click Compress. Sleek PDF searches quality and resolution settings automatically until the file fits.
- Download and upload it to your portal. If standard compression can't reach 100 KB, the tool offers Extreme mode rather than silently failing.
Why "under 100KB" is the hard case
100 KB leaves no room for waste: a single photo from a modern phone is 30–80× that size. Hitting the limit means aggressively downscaling every image while keeping the document legible — exactly the kind of repetitive trial-and-error a search algorithm does better than a human with a quality slider. That's why Sleek PDF makes the target the input, not the output.
Frequently asked questions
How do I get a PDF under 100KB?
Drop the PDF above — the target is already set to 100 KB. Click Compress and Sleek PDF searches for the best quality that fits under the limit. If it can't get there while keeping real text, it says so and offers Extreme mode, which converts pages to images and reaches the target.
100KB is tiny. Will my document still be readable?
Usually yes for 1–3 page documents. A single-page form or letter compresses to 100KB with little visible change; a 20-page photo-heavy scan will need Extreme mode and will look visibly compressed. The tool always shows you the result size before you commit to anything.
Which portals demand under 100KB?
Government application systems, visa portals, bank KYC uploads, and some university admission forms — often built years ago with strict limits. Signature and photo upload fields are the most common 100KB cases.
Is my document uploaded to compress it?
No — it's processed entirely in your browser. For visa and ID documents that's not a nicety; you shouldn't be uploading those to a random compression site at all.