ResizeFox

PRIVATE BROWSER-BASED PDF TOOL

Compress a PDF Online

Reduce the size of image-based PDFs by rendering pages efficiently and rebuilding the document with adjustable image quality.

Best for scanned pages. Compression turns pages into images: selectable text, links, forms and accessibility structure are lost. Keep your original. Page dimensions are preserved; if the result is larger, you receive the original file.

How to use this tool

1

Choose one PDF

Select the supported files from your device. Nothing is sent to a ResizeFox server.

2

Choose the options

This method is best for scans and image-heavy PDFs. It converts page contents to compressed images, so selectable text is not preserved.

3

Process and download

Review the generated result list and save the new file or page images.

How this PDF tool works

This method is best for scans and image-heavy PDFs. It converts page contents to compressed images, so selectable text is not preserved.

Processing large documents can use significant browser memory. Work with a smaller document or divide it into sections if your device becomes slow.

Common uses

Scanned documents

Reduce large scanner output.

Email attachments

Prepare an image-heavy PDF for sending.

Upload limits

Create a smaller copy for online forms.

Mobile sharing

Make visual documents easier to transfer.

FAQ

Questions about compress a pdf online

Are my PDF files uploaded?

No. The operation runs locally with browser-based PDF tools.

Does ResizeFox keep a copy?

No. The generated download exists temporarily in your browser session.

Can I process a password-protected PDF?

Encrypted files may require removal of the password in an authorized PDF application before this tool can read them.