Reduce the file size of your PDFs while maintaining quality.
How to Use PDF Compressor
Upload the PDF you want to shrink.
Choose a compression level (e.g. low, medium, high) depending on how much you're willing to trade quality for size.
Click "Compress" and compare the new file size against the original before downloading.
Key Features & Practical Use Cases
Shrinking bulky PDF portfolios to meet small email attachment limits (usually under 25MB).
Optimizing ebook PDFs to save storage space on mobile reading devices and tablets.
Reducing document sizes before uploading to government portals that have strict file size requirements.
Frequently Asked Questions
Will compressing reduce the quality of images inside my PDF?
Higher compression levels do reduce embedded image quality/resolution to save space - pick a lower compression setting if your PDF contains photos or detailed graphics you want to preserve sharply.
Does compression work on text-only PDFs?
Text-only PDFs are typically already small; this tool's biggest gains come from PDFs with large embedded images or scanned pages.
Can I see how much smaller the file got before downloading?
Yes, the tool shows both the original and compressed file sizes side by side so you can judge the tradeoff before saving.
About OneClickly
OneClickly offers 100+ premium online tools for PDF operations, image compression and conversion, text utilities, calculators, and developer tools. All tools run 100% in your browser - no file uploads, no data collection, maximum privacy guaranteed.
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