PDF TOOLS · BROWSER-BASED
Compress PDFs. Keep things simple.
Reduce the file size of scanned and image-heavy PDFs by re-encoding pages in your browser. Choose the quality you need, compare sizes, and download your result.
✓ Free✓ No signup✓ Local processing
Prepare your PDF
Best for scanned PDFs, photographed paperwork and image-heavy reports. Up to 30 MB and 80 pages.
No PDF selected.
Choose a PDF to begin.
Important: This version compresses by converting every page to a JPEG image inside a new PDF. Selectable text, searchable text, forms, links and accessibility tags will be lost. Do not use for digitally signed PDFs, contracts requiring text retention, or official interactive forms. Verify the result before sharing.
Compression results
The tool always reports the real output size. Some already-optimized PDFs may become larger.
How it works
01 — Choose an image-heavy PDF.
02 — Choose quality; higher DPI keeps small print sharper.
03 — Compress, inspect the pages and download if acceptable.
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All PDF content is rendered locally in browser memory; files are not sent to Voocks. PDF libraries load from a third-party CDN on first use, requiring internet access. Rendering large documents can use considerable memory. No OCR or lossless PDF optimization is provided.