Which engine powers it?

It runs on Drop & Clean’s local WebAssembly PDF engine inside this tab: parsing, rewriting and export all happen in browser memory, with zero server round trips.

Which files can I drop into this tool?

This page works on its own native formats: PDF for document tools and JPG/PNG/WebP for image tools. The engine validates the file before processing, and unsupported input stops immediately instead of producing a broken result.

Will processing damage the original quality or layout?

Page-level operations rewrite the file structure instead of rasterising your content, so vector text, embedded fonts and image resolution are preserved wherever the specific operation allows it.

Are my files uploaded anywhere?

No. The file is read and rewritten inside your browser tab: no upload, no server queue, and no copy left behind on any machine.

PDF Compressor

Reduce PDF file size locally with light, recommended, and extreme tiers.

Part of the PDF Optimization Suite suite. 100% in-browser private execution with zero cloud storage.

Client-Side Processing

100% In-Browser RAM

No upload

Zero Network Payload

No AI training

Zero Model Scraping

No server queue or size limited

No waiting

Media files stay local; diagnostics are separate. Your media file is processed in your browser and is not uploaded or sent to an AI service. If enabled, anonymous diagnostics may be sent, but they do not contain file contents.

Processing Architecture & Calibration

All media streams are isolated locally inside your device using hardware-accelerated WebAssembly (WASM) and WebCodecs. Zero bytes of audio or video content are ever transmitted to external cloud servers.

How It Works

Drop your audio or video file directly into the browser dropzone.
The client-side engine executes local inference or bit-exact extraction without upload delays.
Audition the 15-second realtime A/B comparison with the Dry/Wet slider.
Export your pristine clean master file with 100% original video track preservation.

Frequently Asked Questions

What does this tool do?: Reduce PDF file size locally with light, recommended, and extreme tiers.
Which engine powers it?: It runs on Drop & Clean’s local WebAssembly PDF engine inside this tab: parsing, rewriting and export all happen in browser memory, with zero server round trips.
Which files can I drop into this tool?: This page works on its own native formats: PDF for document tools and JPG/PNG/WebP for image tools. The engine validates the file before processing, and unsupported input stops immediately instead of producing a broken result.
Will processing damage the original quality or layout?: Page-level operations rewrite the file structure instead of rasterising your content, so vector text, embedded fonts and image resolution are preserved wherever the specific operation allows it.
Are my files uploaded anywhere?: No. The file is read and rewritten inside your browser tab: no upload, no server queue, and no copy left behind on any machine.

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