A
AiTechWorlds
AiTechWorlds
Reduce PDF file size by re-encoding pages at adjustable quality — shows % saved, no upload.
Drag a PDF here or click to upload
100% in-browser — your PDF never leaves your device. Use “Keep text” for normal documents (no quality loss) and “Strong” for scanned PDFs that need the smallest possible size.
Compress PDF reduces the file size of a PDF in your browser by re-rendering each page at an adjustable quality level. It shows exactly how much smaller the result is and works best on scanned or image-heavy PDFs. Running fully client-side with pdf.js and pdf-lib, it never uploads your document, so your files stay private.
Upload your PDF
Drag and drop or click to upload the PDF you want to shrink.
Pick quality and resolution
Lower quality and resolution give a smaller file; higher keeps more detail.
Compress and download
Click Compress, check the percent saved, then download the smaller PDF.
100% Private — No Server Required
All processing happens directly in your browser. No data is uploaded, stored, or transmitted to any server.
Last reviewed on June 19, 2026 by the AiTechWorlds Tools Team. All processing runs locally in your browser.
Advertisement