How much can Compress PDF reduce file size?
Savings depend on the source. Image-heavy PDFs often shrink the most; choose a stronger compression level for smaller files or a lighter level to preserve detail.
Reduce file size using smart compression levels
Compress PDF and reduce file size for email attachments and web uploads. Choose smart compression levels while keeping text and images readable.
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Compress PDF and reduce file size for email attachments and web uploads. Choose smart compression levels while keeping text and images readable.
Last updated: Jun 21, 2026
Combine multiple PDFs into one with drag & reorder
Crop PDF pages to remove margins and unwanted edges
Split by page range or individual pages
Convert images to PDF documents
PDF redaction — hide sensitive text, logos, and images with solid colors or blur. Apply to one page or all pages.
Convert PDF pages to JPG/PNG images
Savings depend on the source. Image-heavy PDFs often shrink the most; choose a stronger compression level for smaller files or a lighter level to preserve detail.
Text stays sharp because it is vector-based. Compression mainly optimizes embedded images, so readability is preserved at normal levels.
Many email and portal systems cap attachments around 10–25MB. Compressing keeps you under those limits without splitting the document.
Compress PDF includes free usage on WebioTools. Limits may apply for high-volume usage depending on your plan.
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