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QuickImageTool

Compress PDF FilesOnline for Free

Reduce the file size of your PDF so it's easier to email and upload. Pick a compression level and download the smaller file.

  • Files stay on your device
  • No sign-up
  • Free, no watermark

About this tool

Compress PDF Online

This PDF compressor helps you reduce PDF size so a file fits through email attachment limits and upload portals. Choose Light, Recommended or Strong compression, then compare the size before and after. It is free, with no sign-up and no watermark on the result.

Big savings come from scanned documents and image-heavy PDFs: Recommended and Strong re-render each page as a compressed image, which often makes the file 80–95% smaller — ideal for shrinking a PDF for email or getting a scanned form under the size limit on a job, visa or admission website. Light compression keeps text, links and form fields selectable, but usually saves less. If compressing would not make your file smaller, you are told and the original is kept.

Your PDF is compressed on your own device in the browser, never uploaded, so bank statements, IDs and contracts stay private.

  • Three compression levels

    Light keeps text selectable, while Recommended and Strong shrink scans and photos much further.

  • Before and after size

    See exactly how many kilobytes or megabytes you saved once compression finishes.

  • Made for scans

    Scanned and photo-heavy PDFs often shrink by 80–95% with the stronger levels.

  • Private compression

    Files are processed locally in your browser instead of on a remote server.

Step by step

How to compress a PDF

  1. 1

    Upload your PDF

    Click Choose PDF or drag and drop your file into the upload box.

  2. 2

    Pick a compression level

    Light keeps text selectable. Recommended and Strong turn pages into compressed images for much bigger savings.

  3. 3

    Compress and download

    Click Compress PDF. You'll see the size before and after, and the smaller file downloads straight away.

FAQ

Compress PDF FAQ

Can't find your answer? Contact us.

Yes. Compress as many PDFs as you like for free, with no sign-up and no watermark.

It depends on the file. Scans and photo-heavy PDFs often shrink by 80–95% with Recommended or Strong. Text-only PDFs are usually small already, and Light only saves a few percent. If compressing wouldn't make your file smaller, we tell you and keep the original.

With Light, yes — text, links and form fields stay as they are. Recommended and Strong turn every page into an image, so text can no longer be selected or searched.

Recommended renders pages at 110 DPI with good JPG quality, which stays easy to read on screen. Strong uses 80 DPI and lower quality for the smallest possible file.

There's no exact target setting. Start with Recommended and check the new size; if it's still too big, try Strong. If that isn't enough, split the PDF into parts or send only the pages you need.

No. Your PDF is processed entirely in your browser and never leaves your device.

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