Free Online PDF Tools
Everything you need to work with PDF files — merge multiple PDFs into one, split out specific pages, compress a PDF to a smaller size, convert documents to and from PDF, and edit or watermark pages directly.
Unlike most PDF sites, the tools here process files in your browser whenever technically possible. Your documents are not uploaded to a server, which matters when you are handling bank statements, ID documents, contracts, or anything else you would rather keep private.
No signup, no watermarks on output, no daily limits. Pick a tool below and you are done in under a minute.
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Common questions
Are these PDF tools really free?
Yes. Every PDF tool on OneClickUse is free with no signup, no watermark, and no daily file limit.
Are my PDF files uploaded to a server?
Browser-based tools process your files locally on your device — the PDF never leaves your computer. Each tool page states how it processes files.
Is there a file size limit?
Because processing happens in your browser, the practical limit is your device's memory. Files up to a few hundred MB work fine on most laptops and phones.