Compress PDF

Reduce PDF size for easier sharing.

Choose file or drag and drop here Maximum 15 MB per file

Compress PDF files online

Use the PDF compressor to create a re-saved copy of a PDF that may be more convenient to upload, email, or store. The tool processes the document and applies PDF cleanup and stream compression options while preserving its pages and readable content. This can help when a file needs to fit a website's upload limit or when you want a compact copy for routine sharing. Choose a PDF of up to 15 MB, process it, and download the resulting file for review.

How to make a PDF smaller

Select the PDF from your device, start compression, and wait for the downloadable result. The document is uploaded for server-side processing, so only use files that you are authorized to submit and avoid highly sensitive information. Keep the original PDF until you have checked the new copy. File-size savings depend on the document's contents; a PDF that is already optimized or mostly contains compressed images may show little change, and in some cases the output may be similar in size.

What PDF compression changes

PDF files can contain text, fonts, images, page instructions, and embedded data. Re-saving a PDF with cleanup and compression settings can remove redundant structures or encode streams more efficiently. The tool is intended to retain the document's pages rather than convert them into a different format. It does not provide a slider for selecting image quality or a guaranteed target size, so it may not significantly reduce files dominated by high-resolution photographs.

Check the output before sending it

After downloading the compressed copy, open it in a PDF reader and check the pages, fonts, images, links, and any forms that matter for your task. Compare the file size with the original to confirm that compression helped. If the new file is not smaller enough for an upload limit, consider exporting the source document with lower image resolution or removing pages that are not needed. Always preserve a separate original if the document is important or must remain unchanged.

PDF compression FAQs

How can I reduce the file size of a PDF?

Upload your PDF and run the compressor to create a re-saved copy with PDF cleanup and stream compression. Download and compare the result with your original.

Will every PDF become smaller after compression?

No. Results depend on the PDF contents and how it was originally saved. Some documents may show only a small change.

Does compressing a PDF remove pages or change it to another file type?

The tool creates another PDF and is intended to preserve its pages. Review the downloaded copy before using it.

What is the maximum PDF upload size?

You can upload a PDF up to 15 MB with this tool.