Compress PDF to 100 KB
Shrink your PDF to under 100 KB for visa portals, job applications and university uploads that cap attachment size. Text stays real, selectable text whenever possible.
Compress PDF to 100 KB
Shrink your PDF to under 100 KB for visa portals, job applications and university uploads that cap attachment size. Text stays real, selectable text whenever possible.
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What fits in 100 KB
100 KB is one of the tightest limits you will meet. Government job and exam application forms and some scholarship portals use it for scanned certificates, ID copies and signatures. A PDF typed in Word with no photos usually fits easily, even with many pages, because text takes very little space. Scans are what make a PDF big: every scanned page is a photo.
At 100 KB, expect room for about one to three scanned pages that are still easy to read. If you are scanning for this limit, scan in grayscale instead of colour, use 150 dpi instead of 300, crop away empty margins and include only the pages the form asks for.
How to use this tool
Get your job done in three simple, private steps.
Get started
Upload your PDF — the target is already set to 100 KB.
Adjust Settings
Click Compress. Levels are tried automatically from lightest to strongest until the file is under the target.
Download Instantly
Download the result. You see the before/after size and a warning if the target could not be reached.
Your data never leaves your computer
Unlike online services that upload your resumes, documents, and invoices to cloud servers, Desktora processes everything directly inside your browser memory. Your confidential information stays 100% private.
Frequently Asked Questions
Everything you need to know about using this tool.