100KB target
Compress PDF to 100KB online.
Use the 100KB target only for very strict portals. This is an aggressive size and may reduce image quality.
When 100KB makes sense
A 100KB limit is usually for small forms, single-page documents or portals with strict upload rules. Multi-page scans may not reach it cleanly.
Quality expectations
Expect visible quality reduction on scanned pages and photos. Text-based PDFs are more likely to stay readable.
If 100KB fails
Try 200KB or 500KB, remove extra pages, or create a lower-resolution source PDF before compressing again.
Questions answered
Can every PDF be compressed to 100KB?
No. Some PDFs are already optimised, encrypted, mostly vector-based or too image-heavy to reach 100KB without heavy quality loss.
Will the compressed PDF lose quality?
It can. Smaller targets usually require stronger image compression. Review the result before using it for official submissions.
What should I try if the file is still too large?
Try a larger target, remove unnecessary pages, export scans at a lower resolution, or reduce image-heavy content before uploading again.