Compress a PDF to Under 100KB
Government portals, job applications, and school upload forms often cap attachments at 100KB. Here is how to get under that limit without turning your text into mush.
Drop files here
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Target file size
KB
3 free tasks a day · No signup · Files never leave your device
Step by step
- 1Open the compressor and drop your PDF in.
- 2Pick the strongest compression level and download the result.
- 3If it is still too big, split the document or re-scan photos in grayscale before compressing again.
- 4Image-heavy scans shrink the most; pure text PDFs are already small.
Questions
Why is my PDF still over 100KB?+
It most likely contains full-colour scanned images. Convert the scan to grayscale, or split the file and upload the pages separately.
Are my files uploaded anywhere?+
No. Every PDFOnCall tool runs inside your browser, so the file never leaves your device. That is also why it finishes in seconds instead of waiting in an upload queue.