How to compress PDF to 100 KB
- Check the target size (100 KB is already set; change it if your form needs a different limit).
- Drop your PDF into the box above.
- Click "Compress PDF". A ✓ next to the result means it is under 100 KB.
Where a 100 KB limit is common
A 100 KB cap is typical for government portals, exam and scholarship applications, which often cap documents at 100 KB. Scanned documents and PDFs with photos are often several megabytes, mostly because of the images inside them.
What gets compressed and what doesn't
Pdfverter re-compresses the photos and scans inside the PDF and leaves text and vector graphics untouched, so text stays crisp and selectable. That is why a scanned PDF can usually be shrunk a lot, while a text-only PDF is already compact and may not get much smaller.
- Still too big? Remove pages you don't need, or split the PDF and upload the parts.
- Scanned at high resolution? Rescanning at 150–200 DPI gives a much smaller file to start with.
Pdfverter vs. upload-based PDF sites
| Pdfverter | Typical online PDF tools | |
|---|---|---|
| Files uploaded to a server | Never | Yes, every file |
| Sign-up required | No | Often |
| Watermark on results | No | Sometimes |
| Free file limit | 3 files, 20 MB each | Varies, often 1–2 tasks per hour |
Frequently asked questions
Can every PDF be compressed to 100 KB?
Most PDFs with photos or scans can. If a PDF is mainly text, it may already be close to its minimum size; Pdfverter then tells you the smallest size it could reach.
Are my PDFs uploaded anywhere?
No. Pdfverter processes your files inside your browser, on your own device. Nothing is sent to a server, so it is safe for contracts, statements and other confidential documents.
Will the text become blurry?
No. Text and vector graphics are not touched; only embedded images are compressed.
Can I compress several PDFs at once?
Yes. Free: 3 PDFs at a time. Pro: unlimited, with one ZIP download.