Compress and optimize PDF files directly in your browser. Reduce file size without losing quality, strip unnecessary metadata, and convert to grayscale instantly.
Drag & drop your PDF files here
or click to browse from your device
Achieve maximum file size reduction while preserving critical reading quality in three simple steps.
Drag and drop your oversized PDF securely into your local browser workspace.
Select a global preset like 'Recommended' or manually adjust the DPI and Image Quality sliders.
Execute the client-side pipeline to aggressively strip metadata, downsample images, and export.
Reclaim storage space and bypass email attachment limits. Our WASM engine targets embedded image streams, reconstructing your PDF structure with aggressive but lossy heuristics.
Instantly view a mathematical projection of the file size reduction before you execute.
Manually dial back the DPI (resolution) and JPEG Artifact Quality to force extreme size reductions.
Eliminate heavy RGB color profiles and force all data into grayscale, stripping massive amounts of bloat.
Reclaim up to 80% file size without destroying text vectors.
Answers to common queries regarding document size reduction algorithms and quality.
PDFs usually become bloated when they contain high-resolution images, uncompressed fonts, and redundant metadata. Our PDF Compressor strips out this unneeded data and reduces image quality just enough to save space without ruining legibility.
No. The compression pipeline targets raster images (JPEGs, PNGs embedded in the document). Text elements, vector graphics, and layouts are preserved in their original high-quality mathematical forms.
It converts all colored images in your PDF to black and white. Because color profiles take up significant data, this simple switch is the most effective way to dramatically shrink file sizes for simple scanned documents.
Absolutely. We utilize advanced client-side processing, meaning the entire compression algorithm runs directly inside your web browser. No files are ever uploaded to an external server.