Compress PDF

The Compress PDF tool reduces the file size of a PDF so it is easier to share, upload, or store. It is for PDFs that are larger than they need to be, such as reports with large images or scanned pages. The goal is a smaller file that still reads clearly.

What Is Compress PDF

Compress PDF takes a PDF and produces a smaller version of the same document. The text and page order stay the same. You choose a file, run the tool, and save the result. You then compare the old and new file sizes to see how much was saved.

How to Use

1. Choose a PDF file with the Choose PDF File control.
2. Click Process.
3. Use the result shown on the page to save the compressed PDF.
4. Open the saved PDF and check that the text and images still read clearly.
5. Compare the new file size with the original before you replace the original.

Worked Example

Example input: a 5 MB PDF report with several large photos.

Steps: Choose that PDF, click Process, then save the result.

Expected output: a smaller PDF of the same report, for example 3 MB, with the same pages and text. Check the photos after compression, because image-heavy files lose detail first. If the saving is small, the original may already have been compact.

Limitations

• No quality or size control is shown in the workspace. There is no quality slider or target-size choice to pick before processing.
• No password prompt is shown. Password-protected PDFs are not handled in the workspace as observed.
• No page-range control is shown. The tool processes the file as a whole.
• Text-only or already-small PDFs may shrink very little. A 200 KB text PDF may only save a few kilobytes.
• Scanned PDFs may not shrink much, because each page is an image. The saving depends on the images, not the text.
• Compression may reduce image quality. Check photos, charts, and small print in the saved file before you share it.
• Large files may take longer to process in the browser.

Frequently Asked Questions

How much smaller will my PDF get?

It depends on the PDF. Image-heavy PDFs usually shrink more than text-only PDFs. Compare the file sizes after processing and check the output quality.

Will compression change the text?

No. The text and page order stay the same. Only the file size and, in some cases, image detail change. Check the saved file before you replace the original.

Can I compress a PDF that is already small?

Yes, but the saving may be minimal. If the file is already small, the tool may return a file close to the original size.

Do I need to install anything?

No. The tool runs in the browser. Choose a PDF, click Process, and save the result.