How to compress pdf

Select your file from your device.
Choose a PDF and compression level. Pages are rendered and rebuilt using optimized images.
Download the processed result when it is ready.

What this Compress PDF tool does

Reduce PDF file size using browser-based raster compression. PDFKite focuses on a direct workflow: choose the document, select only the options that matter, process it, and download the result. There is no account requirement before you can start.

Useful for real document work

This tool is useful for email attachments, portal uploads, scans, archives, and storage. Instead of routing users through a general-purpose editor, the page is built around the exact job named in the search query.

Privacy-first browser processing

PDFKite V4 runs document processing in your browser. For native operations such as standards-based PDF/A, AES password encryption, or certificate signing, the optional PDFKite Local Agent runs on your own computer or company-managed endpoint. PDFKite application servers do not receive or store document bytes.

Quality and limitations

Best for scanned PDFs. Text-heavy PDFs may lose selectable text when using stronger compression. PDF files can contain fonts, forms, encryption, embedded media, unusual color profiles, scanned images, and other structures. Always open the exported file and verify critical documents before relying on them.

Why people search for compress pdf

PDF is designed to preserve a document's appearance, but that same stability can make everyday edits awkward. A focused tool solves one specific problem without forcing you to install a desktop suite. Common searches around this task include compress pdf, reduce pdf size, make pdf smaller.

Does PDFKite change my original file?

No. The browser reads the file you select and creates a new output. Your original file remains unchanged on your device.

Can I use this on a phone?

Yes. The interface is responsive and modern mobile browsers can run many PDF operations locally. Very large PDFs may work faster on a desktop because processing depends on your device's memory and CPU.

Compress PDF