Shrink PDF document size using smart stream compression directly in your browser. PDF Compressor with 100% local processing—your confidential files never leave your device.
Two-tier engine: Strong (PDF.js Canvas rasterizer) or Basic (Lossless Streams)
No software installation or account creation required. Everything runs locally on your smartphone, tablet, or desktop browser.
Drag & drop or tap to choose your PDF file. Scanned documents and digital PDFs are supported.
Choose Basic compression for lossless stream optimization or Strong compression for scanned page re-quantization.
Review the saved bytes and download your lightweight PDF file ready for email or portal upload.
Whether filing taxes, submitting resumes, attaching scanned bank statements to visa applications, or submitting court records, PDF files often exceed strict email or portal size limits (often 2MB or 200KB). Uploading confidential tax forms or contracts to cloud-based PDF compression websites is a serious security hazard. FileConvert’s PDF Compressor performs all stream reorganization, font pruning, and image re-quantization entirely on your computer or smartphone. Reduce document size by up to 80% while ensuring your private financial, legal, and personal information never touches remote servers.
| Target Format | PDF (v1.7 compliant) |
| Accepted Inputs | Standard and scanned PDF files (.pdf) |
| Target Size Constraint | Basic (lossless) or Strong (high-ratio) modes |
| Processing Engine | pdf-lib & pdfjs-dist Client-Side Engine |
| Privacy Architecture | 100% Local Browser Execution |
| Execution Latency | ~1–3 seconds |
It inspects the internal PDF structure using pdf-lib and pdfjs-dist, eliminating redundant metadata, packing object streams, and optimizing embedded raster images without uploading your document anywhere.
Switch between high-intent compression, format conversion, and PDF tools
Reduce JPG, PNG, WebP, and AVIF image sizes with real-time visual side-by-side comparison. Process files in your browser with zero server uploads and zero privacy risk.
Convert PNG, JPG, WebP, AVIF, SVG, and HEIC files to modern high-efficiency formats right in your browser. 100% private with instant batch download.
Combine and reorder multiple PDF documents into a single organized file in seconds. Runs completely in your browser sandbox with zero cloud uploads.
Turn photos, scans, and images into clean, formatted PDF documents right in your browser. No file caps, no queues, completely local.
Accurately compress your signature, thumb impression, or photo to under 20KB in your browser. Strictly 100% local processing with zero server uploads.
Reduce passport pictures and photo IDs to under 50KB with razor-sharp facial clarity. Zero cloud uploads, zero watermarks, 100% on-device.
Downscale and compress pictures under 100KB in seconds without cloud uploads. Ideal for college admissions, Discord, and mobile web uploads.
Turn iPhone HEIC and HEIF photos into universal JPGs instantly. Decoded locally in your browser memory — no uploads, no cloud storage, zero privacy risk.
Turn iPhone HEIC and HEIF photos into crisp, uncompressed PNGs instantly. Decoded locally in your browser memory — no cloud uploads, zero privacy risk.
Convert iPhone HEIC and HEIF photos to modern WebP format for 30%+ smaller file sizes and instant web delivery. 100% client-side decoding.
Convert mobile and web WebP downloads into lossless PNG files with perfect transparent backgrounds. Instant, local, and free.
Transform heavy PNG graphics into lightweight, next-gen WebP images with full alpha transparency. Boost Core Web Vitals and site speed.
Shrink multi-page scanned documents, bank statements, and resumes to under 200KB right on your phone. Zero servers, zero waiting.
Combine receipts, assignments, and documents into one organized PDF right in your mobile browser. Fast, private, and thumb-friendly.
Instantly convert Google WebP photos to universally compatible JPG images directly in your browser. No size limits, no waiting, 100% private.
Shrink JPEG images by up to 80% for websites, blogs, and apps without losing visual fidelity. 100% client-side conversion.
Turn SVG vector files into high-resolution transparent PNG images with custom scaling. Processed 100% locally on your device.
Open and convert modern AVIF images to standard JPEG format instantly in your mobile or desktop browser without uploading to external servers.
Convert PNG graphics to standard JPG photos with automatic white background fill for transparent areas. 100% client-side execution.
Extract specific pages, split into custom range chunks, or explode your PDF into individual files directly in your browser with zero server uploads.
Extract every PDF page into sharp, high-resolution JPG or PNG images directly in your browser. No file size limits, zero server uploads.