PDF Compressor
Reduce PDF file size in your browser. No upload, no sign-up.
No Data Collection
No database, no accounts. We literally can't see your images.
Blazing Fast
Native browser processing — no upload, no waiting.
100% Free
No limits, no watermarks, no hidden fees. Ever.
No Account Required
Sign in? Never. Just open the tool and use it.
How to Compress a PDF
1
Upload Your PDF
Drag and drop a PDF file or click to browse. Up to 10 files, 50 MB each.
2
Automatic Compression
Picovert removes redundant data and compresses object streams entirely in your browser. No upload required.
3
Download Compressed PDF
Download the compressed PDF instantly. The file is smaller and fully compatible with all PDF readers.
Frequently Asked Questions
How much can I reduce a PDF's file size?+
Results vary by PDF type. Structure-heavy PDFs (forms, text documents, complex layouts) typically see 10–50% reduction. Image-heavy PDFs may see more modest gains since images are already compressed.
Does PDF compression affect text quality or searchability?+
No. Picovert compresses the PDF's internal data structures without re-encoding text or vector graphics. Your text remains fully searchable and sharp.
Are my PDF files uploaded to a server?+
No. All compression happens locally in your browser using pdf-lib. Your files never leave your device — not even temporarily. This makes it safe for confidential documents.
What types of PDFs compress best?+
PDFs with complex object structures, duplicate streams, or uncompressed metadata compress the most. Simple single-page image PDFs may see minimal reduction since their content is already optimized.