100% Client-Side

Compress PDF Files Online — Reduce Size in Your Browser

Optimize and reduce the file size of your PDF documents directly inside your browser. Especially effective for scanned paperwork, receipts, invoices, and image-heavy brochures that exceed email attachment limits.

Our browser-based compressor uses calibrated canvas rasterization to re-encode pages at optimized resolutions without sending a single byte across the internet. You receive transparent before-and-after size metrics with complete data privacy.

Drag & drop your PDF here

or click anywhere inside the box to browse files

Files up to 35MB • 100% Client-Side

100% Client-Side: Re-encoding and rebuilding occur entirely in your browser. No file bytes are sent to any remote server.

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How It Works (Step-by-Step)

1. Select Your PDF Document

Upload a PDF file up to 35MB (up to 50 pages) from your computer or phone.

2. Select Compression Level

Choose Light (best quality), Medium (recommended balance), or Strong (maximum size reduction).

3. Review Metrics and Download

Inspect the exact original size, compressed size, and percentage saved before downloading your optimized PDF.

Key Features & Advantages

100% In-Browser Optimization

Re-encodes pages directly in browser memory. Your confidential records are never uploaded to any remote server.

Transparent Before/After Metrics

Clear breakdown showing original bytes, resulting bytes, and exact space saved.

Multiple Compression Presets

Three tailored quality presets so you can prioritize visual sharpness or maximum file reduction.

Honest Technical Safeguards

Warns you clearly if a text-heavy PDF does not shrink, ensuring you always keep the best copy.

AdSense Slot (in-content)Pre-allocated container to prevent CLS

Frequently Asked Questions

How does browser-based PDF compression work?

The tool rasterizes PDF pages into optimized JPEG streams at calibrated resolutions and rebuilds a new PDF container in memory. This delivers substantial file size reductions for image-heavy documents, scans, and photos.

Does text remain selectable after compression?

Because client-side compression utilizes image-based re-encoding, text on the compressed pages becomes visual image elements rather than selectable digital text. This method is primarily designed for scanned documents, receipts, and photos.

Why did my compressed PDF become larger than the original?

If your original PDF is composed purely of vector text streams or was already heavily compressed, rasterizing pages into images can increase file size. When this happens, our tool alerts you immediately so you can retain your original document.

Are my confidential files uploaded to any servers?

No. All processing happens 100% locally inside your browser memory. Zero file bytes are transmitted over the internet.

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