Compress PDF to 100 KB
Add a PDF and get it back at 100 KB or less — the limit most exam, job and government upload forms use. The tool runs several passes and keeps the sharpest version that still fits, and you see the exact achieved size before downloading. Everything happens in your browser: nothing is uploaded, nothing is stored.
Drop your PDF here
One file or several — any page count
Processed on your device — no upload, no account, no watermark.
Result
Add a PDF and the compressed 100 KB version appears here with its exact final size.
How to compress a PDF to 100 KB
- 1. Add the PDF you need to shrink — scans, forms, certificates, resumes.
- 2. Leave the target at 100 KB, or tap 200, 300 or 500 KB if your form allows more.
- 3. Press Compress and let the passes run; long scans take a few seconds per page.
- 4. Check the achieved size next to the original, then download the smaller PDF.
Each pass re-renders the pages and binary-searches JPEG quality between 20% and 92%, stepping the render scale down only when quality alone cannot reach the target — so you never lose more sharpness than the size limit actually requires.
What size does your upload need?
| Upload | Typical limit | Use target |
|---|---|---|
| Signature or photo page | 50–100 KB | 50 KB |
| Exam form document (SSC, IBPS) | 100–200 KB | 100 KB |
| Marksheet or certificate scan | 200–300 KB | 200 KB |
| Resume for a job portal | 300–500 KB | 300 KB |
| University admission document | 500 KB – 1 MB | 500 KB |
Why some PDFs shrink far more than others
A phone photo of a document saved as PDF is often 3–8 MB because it stores a full-resolution camera image, so it compresses to 100 KB easily. A text-only PDF exported from Word may already be 80 KB and cannot get much smaller — in that case the tool keeps your original rather than degrading it for no gain. Multi-page colour scans are the hardest: expect to need 200–500 KB to stay readable.
Keeping a 100 KB PDF readable
Scan or photograph the document in good, even light and crop away the desk background before compressing — fewer wasted pixels means more of the budget goes to the text. Greyscale scans compress noticeably better than colour ones, and a single-page upload will always look sharper at 100 KB than a five-page file squeezed into the same limit.