PDF compression guides
PDF compression guides
Choose the problem you are trying to solve. Each guide separates measured examples from general advice and tells you what to check before sharing the result.
Last updated
- How to Compress a PDF for Email Without Uploading ItCheck Gmail and Outlook attachment limits, calculate a safer target, compress locally, and choose between ZIP, splitting, or a controlled share link.
- How to Compress a Scanned PDF Without Making Text Hard to ReadReduce a scan-heavy PDF carefully, compare resolution and color tradeoffs, inspect signatures and fine print, and protect archival or legal originals.
- PDF Compression Levels Explained: File Size vs. Image QualityLearn what lossless compression, lossy images, downsampling, fonts, and cleanup change, then calculate reduction from raw bytes and compare three fixtures.
- Why Is My PDF So Large? 7 Causes and the Fix for EachIdentify seven common causes of an oversized PDF, match each signal to a real fix, compare three measured fixtures, and protect signed or production files.
How we prepare these guides
We check claims against primary sources and, when a question calls for testing, use the same fixed PDFStay fixtures so the result can be reproduced. We state what the evidence cannot prove, review each localization in its own language, and change the update date only when the guidance itself changes in a substantive way.