How the PDF is made smaller
Upload portals often cap documents at 100 KB, while a scanned certificate straight from a phone app can be several megabytes. Myriadfile renders each page of your PDF as an image, then searches for the combination of resolution and JPEG quality that keeps the whole file under 100 KB while looking as sharp as possible.
If the file is already under the limit, you are told so and can download it unchanged. The trade-off of rasterising is that text in the result is part of the image: it cannot be selected or searched. For form uploads that is almost always fine, because officials only need to read the document.
How to compress PDF to 100 KB
- Choose the PDF. Up to 50 pages. Password-protected PDFs must be unlocked first.
- Check the target. Set to 100 KB. Use the quick buttons for other common limits.
- Optionally use grayscale. Black-and-white documents shrink much further in grayscale.
- Download. The result shows the final size, the resolution used and the quality.
Settings explained
- Target max size (KB)
- Kept under N × 1,000 bytes, so it also passes portals that count 1,024.
- Grayscale
- Removes colour. Perfect for mark sheets and printed certificates; avoid it for colour photos or coloured stamps that must be visible.
Making many pages fit
Every page shares the budget, so a 10-page document at 100 KB gives each page only a few KB. Upload only the pages the portal asks for, use grayscale, and split long documents if separate uploads are allowed.
Starting from photos instead?
If your document is a set of photos, use JPG to PDF under 100 KB, which builds the PDF directly at the target size.
Troubleshooting
- “Could not reach the target”
- Too many pages for the size. Try grayscale, remove pages, or ask whether the portal accepts a larger file.
- “This PDF is password-protected”
- Open it in your PDF reader, enter the password, and save or print to a new PDF without a password.
- The text is hard to read
- The target is very tight for the page count. Use grayscale, which spends the budget on sharpness instead of colour.
Frequently asked questions
Is the content changed?
No. Pages look the same, at a lower resolution and higher compression.
Can I still select text?
No. Pages become images. Keep your original if you need selectable text.
What is the maximum number of pages?
50 pages per PDF.
Why does the tool aim slightly under the limit?
Portals count a kilobyte as either 1,000 or 1,024 bytes. Myriadfile keeps the maximum under N × 1,000 bytes and any minimum above N × 1,024 bytes, so the file passes either way.
Is it safe to resize ID documents here?
Yes. Files are processed in your browser and never uploaded, so your photo, signature and certificates stay on your device.