Upload limits are the usual reason people compress a PDF — a portal that caps at 2MB, an email that bounces, a form that refuses anything larger. This strips out unused objects, duplicate resources and leftover metadata, then re-deflates the file, and shows you exactly what it saved.
Reduce a PDF's file size by cleaning up unused objects and metadata.
It depends entirely on the file. Text-heavy PDFs with lots of leftover structure can shrink a great deal; a PDF that's mostly scanned images may barely change, because the images themselves aren't re-encoded. You always see the real before and after figures rather than a promise.
No. This is structural compression — unused objects and metadata are removed, not your content. Text stays selectable and images are left at their original quality.
Edit PDF
Open a PDF and edit the text directly, keeping the exact layout, fonts and page size.
Merge PDFs
Combine several PDFs into a single document, in the order you pick them.
Split / extract pages
Pull specific pages out of a PDF into a new document.
Watermark PDF
Stamp text across every page — DRAFT, CONFIDENTIAL, a company name.