Use the PDF compressor
Start with the main PDF compression workflow for scan-heavy files.
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Scanned PDFs are usually harder to reduce because they are made of large page images rather than lightweight text. That is why they often fail uploads even when the document itself is only a few pages long. A browser-based compressor is useful here because it gives you a quick way to create a smaller scan-based copy for sharing or submission.
March 30, 2026 · 4 min read
Use The Matching Tool
Compress PDF files online for free. No signup required. Reduce PDF size fast for email, sharing, and uploads.
Each scanned page usually behaves like an embedded image. That makes the file size depend heavily on scan resolution and image quality rather than plain text structure.
Use the government-upload guide when the scan also needs to meet a formal portal requirement.
Use the 100KB guide when the scanned file must fit a much stricter size cap.
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