Compress PDF Files

Shrink your PDF for email and uploads, with quality and scale controls

Upload PDF File

Click to select a PDF file

About Compress PDF

PDF files can become very large, especially when they contain scanned pages or high-resolution photographs. Large files are slow to send, may be rejected by email providers and take up unnecessary storage space. Compressing a PDF reduces its size while keeping it readable.

Golden PDF reduces file size by optimizing the images inside your document, which is where most of the weight usually is. You can choose how aggressively to compress, balancing size against visual quality. Processing happens entirely in your browser, so your documents are never uploaded to a server.

Common uses

  • Meet the attachment size limit of an email or job application portal
  • Save storage space when archiving scanned paperwork
  • Speed up sharing of large presentations or brochures
  • Make PDFs load faster on mobile connections

Tips for best results

  • Start with a medium setting and only compress harder if the file is still too big.
  • Documents that are mostly text will not shrink much; scanned and photo-heavy PDFs shrink most.
  • Always compare the output with the original before deleting anything.

How to use Compress PDF

  1. 1Upload the PDF you want to shrink.
  2. 2Adjust the quality and scale sliders.
  3. 3Click compress and wait a moment.
  4. 4Compare the sizes and download the result.

Why use Golden PDF

  • Smaller files for email and web forms
  • Choose between quality and size
  • See the size reduction immediately
  • Private: files never leave your device
  • Free, with no sign-up

Frequently asked questions

How much can a PDF be compressed?

It depends on the content. PDFs full of large images shrink the most, while text-only files are already small.

Will compression affect readability?

Compression works by re-rendering each page as an optimized image. Higher quality and scale keep text sharp, lower values give smaller files. Note that the text in the compressed file is no longer selectable, so keep your original if you need to search or copy text.

Are my files uploaded to a server?

No. Golden PDF processes everything inside your browser on your own device. Your files are never sent to or stored on our servers.

Is this tool really free?

Yes. All Golden PDF tools are free to use with no sign-up, no watermarks and no file-count limits beyond what your device can handle. The site is supported by advertising.

Golden PDF - Free Online PDF & Image Tools

Golden PDF is a free collection of tools to merge, split, compress, convert, rotate and protect PDF files, and to compress, resize and convert images. Everything runs inside your browser, so your files are never uploaded.