PDF Compressor — Reduce Size to 200KB or 100KB Free

Upload your PDF file by dragging it onto the drop zone or clicking to browse. Select your compression level (Recommended for balanced quality, Extreme for maximum size reduction). Click Compress, then download the optimized file. No account or sign-up required — the entire process runs locally in your browser.

Upload your PDF, then select the 'Extreme' compression preset which targets maximum size reduction. For most image-heavy PDFs, this achieves file sizes under 200KB. If your PDF contains high-resolution photos, the tool automatically reduces image DPI and quality to hit the smallest possible output. You can also use the custom quality slider to fine-tune compression strength until the preview shows your desired output size.

Yes. Select 'Extreme' compression to push the file as small as possible. For PDFs that are primarily image-based (scanned documents, photo-heavy reports), output under 100KB is achievable. For text-only PDFs, file sizes are naturally small regardless of compression level. The tool displays the estimated output size before downloading so you can verify the result.

For PDFs larger than 5MB, use the 'Recommended' compression preset — it typically achieves 60–85% file size reduction while maintaining readable quality. For very large PDFs (10MB+), switch to 'Extreme' to push below 1MB. The tool processes images within the PDF by reducing resolution and applying JPEG optimization, which is the primary source of file size in most documents.

No. Vector text, fonts, and native shapes are perfectly preserved at any compression level. Only rasterized (embedded) images are optimized — their resolution (DPI) and JPEG quality are reduced based on the compression preset selected. The document remains fully readable and searchable after compression.

Yes. This is a 100% free online PDF compressor with no file limits, no watermarks, and no sign-up required. You can compress as many PDF files as you need directly in your browser. All processing happens client-side — your files never leave your device or touch a remote server.

Yes. The PDF compressor is fully mobile-compatible. On iPhone (Safari) or Android (Chrome), tap the upload area to select a PDF from your device storage or Files app. After compression completes, tap Download to save the smaller PDF directly to your phone. No app installation needed.

Compression results depend on the content type. Image-heavy PDFs (scanned documents, presentations, reports with photos) typically achieve 60–90% size reduction. Text-only or already-optimized PDFs see 10–30% reduction. The tool displays both the original file size and compressed output size before you download, so you always know the exact savings.

The compressor accepts any standard PDF file (.pdf) regardless of origin — scanned documents, Word exports, InDesign exports, presentation PDFs, and form PDFs all work. Multi-page PDFs are fully supported. Password-protected PDFs must be unlocked first before compression.

No. This PDF compressor runs 100% in your browser using JavaScript — your files are never uploaded to any remote server. All compression processing happens locally on your device. This makes it faster, completely private, and safe for sensitive documents like contracts, medical records, and financial statements.

The compressor applies several techniques: image downsampling (reducing embedded image DPI from 300 to 150 or 96), JPEG re-encoding at optimized quality levels (70–85%), removal of duplicate objects, and stripping of embedded metadata, thumbnails, and unused font subsets. The text and vector layer of your PDF remains untouched and fully sharp.

No account or subscription is required. The tool is 100% free with unlimited compressions. Simply drag and drop your PDF, select a compression level, and download the result — no registration, no watermarks, no usage limits.