Where 500KB limits appear
Admissions, scholarship and recruitment portals often limit each certificate, transcript or ID copy to a few hundred kilobytes. With dozens of documents per applicant, small limits keep their systems manageable.
Getting a scanned certificate under 500KB
- One certificate per file: a single page fits in 500KB comfortably, even as a clear scan.
- Crop off the scanner bed or table around the paper before making the PDF.
- If you photographed the document with your phone, use good, even light — shadows and noise take up space.
Choosing between 200KB, 300KB and 500KB
Use the largest size the form allows. A one-page scan at 500KB is noticeably crisper than the same page at 200KB, and some reviewers zoom in to check stamps and signatures.
Frequently asked questions
Can a multi-page PDF fit in 500KB?
Typed multi-page documents usually can. Several scanned pages may need lower resolution to fit — the tool handles this automatically and tells you if the target can't be reached.
Will the stamp and signature still be visible?
Yes, at 300–500KB for a single page they remain clear on screen.
My file is a JPG, not a PDF — can I still use this?
Use one of the image tools instead, such as Reduce Image Size in KB, which accepts JPG and PNG.