Piclizer

PDF Compressor

Make a PDF small enough to email or upload. Light and medium levels optimise the file structure without touching quality, while maximum rasterises the pages for the smallest possible result.

Drop your images here

Drag & drop images here, or click to browse

Max 100 MB per fileAccepted: PDF
Compression results depend on what is inside your PDF. Text-only files are already efficient and may shrink very little; scanned or image-heavy files usually shrink a lot.
All processing is done locally in your browser. Your images never leave your device.

How to use

  1. 1

    Add the PDF you want to compress.

  2. 2

    Choose a compression level: light, medium or maximum.

  3. 3

    Press Compress PDF and wait for the result.

  4. 4

    Compare the sizes and download the smaller file.

Supported formats

Accepts

PDF

Produces

PDF

FAQ

Text-only PDFs are usually already efficient. Big savings come from documents packed with photos or scans.

It re-renders each page as a JPEG image at 110 DPI. Files become much smaller, but text is no longer selectable or searchable.

Yes. They rewrite the file structure, remove unused objects and pack object streams without altering page content.

No. Everything is processed locally in your browser.

The tool tells you when no meaningful reduction was possible so you can simply keep your original.

About this tool: PDF Compressor

Shrink heavy PDFs intelligently

The PDF Compressor reduces the size of scanned and image-heavy PDF documents by re-encoding their embedded images at an optimised quality. Text pages stay razor sharp, while the photographic layers that dominate file size shrink dramatically — often by half or more.

Oversized PDFs are the classic blocker: e-mail systems reject them, portals time out, cloud storage fills up. Compression solves this without re-scanning anything. You control the balance — aggressive for archives, conservative for documents that must stay presentation-ready.

Compression runs in your browser: pages are rendered and re-assembled locally, so confidential documents never touch a server. For image-only PDFs from a scanner, pair this tool with Images to PDF after extracting pages as pictures — sometimes that route compresses even further.

Like every Piclizer tool, this one runs entirely in your browser — your files stay on your device.

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