How to Compress a PDF for Email Attachments
Email services cap attachments at around 20–25 MB, and many inboxes reject less. Here is how to shrink a PDF s...
Read guide →Compress PDF
Reduce the file size of your PDF.
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About Compress PDF
PDF compression reduces a file's size by re-encoding images and optimizing the internal file structure, without changing what the document looks like on the page. This matters most for PDFs with lots of images or scanned pages — those often carry far more data than they need to for screen or print use.
There's a real quality-versus-size tradeoff: lighter compression keeps quality closer to the original with a smaller size reduction, while higher compression saves more space at the cost of some image sharpness. For most everyday needs — emailing a document, uploading to a portal, sharing over WhatsApp — even moderate compression makes a noticeable difference in file size without a visible quality change.
There's a real quality-versus-size tradeoff: lighter compression keeps quality closer to the original with a smaller size reduction, while higher compression saves more space at the cost of some image sharpness. For most everyday needs — emailing a document, uploading to a portal, sharing over WhatsApp — even moderate compression makes a noticeable difference in file size without a visible quality change.
Compress PDF guides
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Read guide →Frequently Asked Questions
Will compressing reduce my PDF's quality?
There's a small quality/size tradeoff depending on the compression level you choose.
How much smaller will my file get?
It depends on the content — PDFs with lots of images typically compress more than text-only documents.
Is there a file size limit?
The tool handles typical document sizes without issue; very large files may take longer to process.
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