PDF Compressor
Upload a PDF to re-optimize its internal structure and reduce its file size, directly in your browser.
Pourquoi utiliser cet outil ?
This tool re-saves your PDF with an optimized internal structure (object streams), which reduces its size somewhat, especially for PDFs with many objects or duplicated data. Note: unlike server-side compressors, it does not re-encode embedded images, so the gain is more modest — for image-heavy PDFs, compressing the images first (with our Image Compressor) before assembling the PDF gives better results. Everything happens in your browser: your file is never uploaded.
Why it's free
A discreet ad banner covers hosting costs — that's the whole business model. No account to create, no usage limit, no paid tier unlocking the real result. Calculations run in your browser, so your numbers, dates and text never leave your device.
How our tools work