What is Compress PDF?

PDFs bloat fast: a 40-page scanned report or a photo-heavy brochure can easily weigh 30–50 MB, too large for email attachments and slow to open on a phone. Compress PDF shrinks that file by recompressing embedded images and cleaning redundant data inside the document, often cutting size by 50–80%. The layout, fonts, and page order stay exactly the same — only the payload gets lighter, so a bulky scan becomes a file you can actually send.

How to use

1. Upload the oversized PDF — typical candidates are scanned contracts, image-heavy proposals, or catalogs with dozens of photos.
2. Choose your compression balance: stronger compression gives a dramatically smaller file but visibly softens images, while lighter compression keeps print quality nearly intact.
3. Run the compression and review the before-and-after file sizes the tool reports.
4. Download the compressed PDF and check a zoomed-in page to confirm the quality still meets your needs before sending it on.

Common use cases

• Job seekers shrink CVs with certificates and scanned degrees so they pass under the 2–5 MB limits on hiring portals.
• Real estate agents compress property brochures packed with photos so they can be emailed to buyers and opened on mobile data.
• Students reduce scanned lecture notes and textbook chapters to upload sizes accepted by university submission systems.
• Businesses compress archived invoices and signed contracts so years of records take less cloud storage.

FAQs

Will compression make my document unreadable?

Text stays perfectly sharp because compression targets the images inside the PDF, not the text. Photo-heavy pages lose some crispness at high compression — for screen viewing and email that's usually invisible, but for print-quality output choose the lighter setting.

Does it work on scanned PDFs?

Yes, and scanned PDFs are where it helps most. A scan is essentially one big image per page, so a scanned 20-page document can drop from 60 MB to under 10 MB with barely noticeable quality loss on screen.

Is there a maximum file size I can upload?

Very large files may take longer to process or time out on slow connections. If your PDF is several hundred megabytes, split it into smaller chunks first, compress each one, and then merge them back together.

Do I need to install anything or create an account?

No — it runs entirely in your browser. Your file is compressed and handed back to you; nothing is saved, no signup is asked for, and there's no software to download.