File Compressor

Online PDF Compressor

Drastically reduce the size of your heavy PDFs. Processing happens entirely in your web browser, ensuring 100% privacy.

Loading PDF Engine...

Preparing local environment for secure compression.

Absolute Privacy

Confidential contracts, invoices, and IDs stay on your device. We never upload or store your files on any cloud servers.

Flattening Engine

Our tool flattens heavy PDF pages into highly optimized layers, effectively compressing image-heavy and scanned documents.

Guaranteed Reduction

We safely convert high-resolution embedded images into balanced formats, ensuring noticeable size reduction.

How Browser-Based PDF Compression Works

Unlike traditional PDF compressors that upload your files to a distant server, our tool uses advanced JavaScript libraries to parse and rebuild your document directly inside your browser.

We use a Rasterization Technique. Heavy PDFs are usually bloated because of high-resolution images or complex unoptimized vectors. Our tool scans every page, converts it into a highly compressed standard format, and bundles it back into a new PDF.

Best for:

  • Scanned Documents: Drastically reduce the size of scanned IDs, assignments, and contracts.
  • Image-Heavy PDFs: Presentations and portfolios get heavily optimized without losing visual readability.
  • Bypassing Upload Limits: Easily shrink files to meet strict 1MB or 2MB portal requirements.