Why is my scanned PDF still larger than 1 MB after compression?

High-resolution full-color 300 DPI scans contain massive image data on every page. Convert the document to grayscale or downsample to 120 DPI to bring it under 1 MB.

Will government upload portals accept compressed PDFs?

Yes. Compressed PDFs adhere to standard ISO 32000 specifications and open seamlessly in all standard PDF readers, browsers, and automated verification parsers.

How to Compress a PDF to 1 MB for Online Portals & Applications

Published: 2026-02-02 | Read Time: 4 min read

Step-by-step guide to compress multi-page PDF documents below 1 MB for job portals, university uploads, and government application forms.

Frequently Asked Questions

Why is my scanned PDF still larger than 1 MB after compression?: High-resolution full-color 300 DPI scans contain massive image data on every page. Convert the document to grayscale or downsample to 120 DPI to bring it under 1 MB.
Will government upload portals accept compressed PDFs?: Yes. Compressed PDFs adhere to standard ISO 32000 specifications and open seamlessly in all standard PDF readers, browsers, and automated verification parsers.