Compress PDF file

Reduce PDF file size while maintaining the best possible quality.

or drop PDF file here

How to do

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3 quick steps to compress your PDF.

1

Upload your PDF files

Select up to 12 PDFs to compress at once, or drag and drop them into the browser. Every file stays on your device throughout.

2

Pick a compression level

Choose Less Compression to preserve the highest image quality, Recommended for everyday use, or High Compress for the smallest possible file size.

3

Download your compressed files

AziPDF compresses each PDF entirely in your browser, then downloads a single file or a ZIP if you compressed several at once — never larger than the original.

FAQs

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Answers about compressing PDFs securely.

Yes. 100% browser-based process. Your files are never uploaded to any server. Everything runs locally on your device.
"Recommended" is ideal for most use cases. Choose "High Compress" for email/messaging, "Less Compression" for professional print.
PDF compression may slightly reduce image quality depending on the selected level. Less Compression preserves the highest quality, while High Compression creates smaller files.
No hard limits. Everything runs in your browser, so most devices handle hundreds of pages and files up to 500 MB.
No. AziPDF is completely free to use with no watermarks, no limits, no subscription required.
Yes. Upload up to 12 PDFs and compress them all in one go. They are packaged into a ZIP file for download.
Some PDFs are already heavily optimised. AziPDF returns the original file so you never get a larger output.
AziPDF compresses PDF files in your browser instead of uploading them to a server. No registration, no watermarks, and no daily limits.
Yes. AziPDF works on Android phones, iPhones, tablets, laptops, and desktop computers without installing any software.
Compressed files are downloaded as PDF documents. When compressing multiple PDFs, all files are packaged into a ZIP archive for download.