Note: this compressor rasterizes pages — it rebuilds the PDF from page images, so text becomes part of the image and is no longer selectable. It works best on scanned or image-heavy PDFs.
Shrink bulky PDFs so they are easy to email or upload. The quality slider lets you trade clarity for size until the file fits your needs.
After compressing you get the original size, the new size and the exact percentage saved, so you can decide whether to keep the result or try a different quality.
This tool rasterizes each page — it rebuilds the PDF from page images. That is why it excels on scans and image-heavy PDFs, though page text becomes part of the image.
Compression runs entirely in your browser with the pdf.js and pdf-lib engines. Your PDF is never uploaded, so sensitive documents never leave your device.
Drop your PDF onto the drop zone or click to browse, choose a quality level with the slider, then click Compress PDF. The tool rebuilds the document at the chosen quality and shows the original and new sizes before you download.
No. Compression runs entirely in your browser using the pdf.js and pdf-lib engines. Your PDF is never uploaded, so confidential documents stay on your device and the tool works offline once loaded.
No. This compressor rasterizes each page — it renders the page to an image and rebuilds the PDF from those images. That gives strong size reductions for scanned or image-heavy PDFs, but text becomes part of the image and is no longer selectable or searchable.
The default of 0.6 offers a good balance of size and clarity for most documents. Lower the quality for the smallest files, or raise it toward 1.0 if pages look too soft. Compare the before-and-after sizes to find the right trade-off.
PDFs that are mostly plain text or already optimized may not shrink, because rasterized images can be larger than compact vector text. This tool works best on scanned documents and image-heavy PDFs. If the new file is larger, keep your original.
This PDF compressor runs 100% in your browser using the pdf.js and pdf-lib libraries. No files are uploaded and nothing is stored on any server — your PDF never leaves your device.