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Compress PDF

Use Compress PDF when a document is too large for an upload limit, attachment limit, or sharing workflow. Upload one PDF, choose the compression level, and download a smaller copy when compression is possible. Scanned documents and image-heavy PDFs typically shrink the most, while text-only PDFs that are already optimized may see smaller reductions.

PDF

Stronger compression can reduce quality more on image-heavy PDFs.

This tool processes the PDF on the server to achieve stronger file-size reduction. Uploaded files are used only for the requested operation.

Reduce PDF File Size for Uploads and Sharing

Compress PDF files when upload forms, email attachments, or document portals reject the original file size and you need a smaller PDF.

The tool processes the uploaded PDF and returns one compressed PDF file. Actual size reduction varies by document type.

How to use Compress PDF

1

Upload one PDF file.

2

Choose the compression level based on how small the file should become.

3

Click Compress PDF to create the smaller file.

4

Download the compressed PDF file.

Why this helps in real workflows

A job application portal rejects a PDF that is too large.

A PDF attachment should fit within an email size limit.

A scanned document packet needs to be reduced before uploading.

A client portal has a strict PDF size cap.

Common problems and fixes

The PDF is too large for the upload limit.

Choose a compression level and generate a smaller PDF before uploading it again.

A scanned PDF is much larger than it needs to be for sharing.

Compress the PDF to reduce attachment size and make it easier to send.

Related tools

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Related Guides

When to Compress a PDF Before Uploading Best File Format for Resume and Job Application Uploads How to Compress an Image to 100 KB

Frequently asked questions

How do I compress a PDF online?

Upload one PDF, choose a compression level, click Compress PDF, and download the processed file.

Will every PDF get much smaller?

Not always. Scanned or image-heavy PDFs usually shrink more than text-heavy PDFs that are already optimized.

How much can PDF compression reduce file size?

Results vary widely. Scanned and image-heavy PDFs often shrink by 30 to 70 percent. Text-only PDFs that are already well-optimized may see smaller reductions.

What does the compression level change?

Lower compression keeps more original quality, while stronger compression aims for a smaller file and may reduce image resolution slightly on image-heavy PDFs.

Does compression change how the PDF looks?

Low and balanced compression preserve most of the original quality. Stronger compression may reduce image sharpness in PDFs that contain a lot of scanned or photographic content.

Does this tool run in the browser?

No. PDF compression is handled on the server for stronger file-size reduction than the browser-only PDF tools.