Theme

File names

IMG_2041.heic

IMG_2041.jpg

Language

Your files and these choices stay on this device.

Conversion settings

Your starting point for new files. You can still change anything before converting.

Convert to

Quality
AutoSmaller fileBest quality
Bitrate
Auto64 kbps320 kbps
Video bitrate
Auto1 Mbps12 Mbps
Speed
Resolution
Color
Normalize volume
Remove metadata
Leave out images
Download several files as

How to compress a PDF

Pick a level and the photos inside the PDF (JPEG and PNG) are re-encoded at that quality. Duplicate images are merged and unused data is removed, so the text stays selectable.

  1. Drop the PDF you want to shrink.

  2. Choose a compression level, and whether to also drop details and flatten forms.

  3. Compare the size before and after, and download the smaller PDF.

See also

  • Scale PDF

    Resize pages to A4, Letter or a percentage, keeping the content.

  • PDF to image

    Save PDF pages as PNG, JPG or WebP images, alone or in a ZIP.

  • Split PDF

    Split one PDF into several files, one per page range.

Questions about Compress PDF

Does compressing a PDF with fileclay upload my document?

No. Your browser rewrites the PDF on your device, which is also why compressing a large file takes a moment.

Will the compressed PDF look the same?

On Light it’s the same document, only rebuilt. On the other levels only the embedded photos are re-encoded in place, so text stays selectable; a photo that wouldn’t get lighter is left untouched. That’s why a text-only file barely changes size instead of growing.

Which level should I choose?

Recommended for sending by email or uploading to a form. Strong or Maximum when the file has to fit a strict size limit and you can accept softer images.

Why does a photo PDF barely shrink on Light?

Light never re-encodes images: it only rebuilds the file and drops metadata and form fields. In a photo PDF the size is in the images, so that level helps most on files that have been edited many times.