PDF Compressor

Two modes: lossless clean-up (text stays selectable, 5–20% smaller) or deep image compression (50–90% smaller, fully browser-based).

Click to select PDF or drag & drop here

Max 50 MB · All processing in your browser · No upload

Compression Mode

Lossless Safe

Removes metadata & re-saves streams. Text stays selectable. Best for Word/Docs exports. Typical: 5–20%.

Deep Compress Lossy

Renders pages as JPEG images. 4 MB → ~400 KB typical. Text becomes non-selectable.

⚠️ Text will not be selectable in the output — each page is rasterised to a JPEG image. This is how all browser-based PDF compressors achieve large reductions without a server. Use Lossless mode to preserve text, links, and form fields.

Image Quality

Resolution (DPI)

Starting…

Select a PDF above to get started.

How it works

🔒 Lossless Mode Strips hidden metadata (author, keywords, creator tags) and re-saves internal PDF streams with maximum compression. Images and text are completely unchanged. Expect 5–20% reduction on PDFs created by Word, Google Docs, or macOS apps.

🗜️ Deep Compress Mode Uses PDF.js to render each page at your chosen DPI (180 DPI standard = 2.5× native resolution), encodes as JPEG, then builds a new PDF preserving the original page dimensions. At 180 DPI / 80% JPEG a 4 MB document typically becomes 400–900 KB. Text will not be selectable — this is how all browser-based tools achieve large reductions without a server.