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PDF files only
Compression Mode
How to Compress a PDF
- Click Choose PDF or drag and drop your file.
- Select a compression level — Standard removes unused objects; Aggressive re-renders pages at lower resolution.
- Click Compress PDF and wait for processing.
- Download your compressed file and compare the size reduction.
Frequently Asked Questions
Is my PDF uploaded to a server?
No. Everything runs in your browser using JavaScript. Your PDF never leaves your device.
How much will my PDF shrink?
Standard mode typically reduces size by 5–30% by removing unused objects. Aggressive mode re-renders pages as images, which can achieve 50–80% reduction but removes selectable text.
Will compression affect quality?
Standard mode preserves all content. Aggressive mode reduces image resolution so may show slight quality loss on image-heavy PDFs.