Merge, split, compress, convert, protect and edit PDF files online. Super simple, 100% free and works in any browser.
Powerful tools to work with your PDF files
Combine multiple PDFs into one
Use ToolExtract pages or split into files
Use ToolReduce PDF file size
Use Tool PROConvert PDF to editable DOCX
Use Tool PROConvert DOC & DOCX to PDF
Use ToolConvert images to a PDF
Use ToolConvert each page to an image
Use ToolRotate pages 90/180/270°
Use Tool PRORemove PDF password
Use Tool PROAdd a password to your PDF
Use Tool PROAdd text watermark to pages
Use Tool PROMake scanned PDFs searchable
Use ToolProcess files in seconds
Your files are safe with us
Any device, any browser
100% online, no software needed
Perfect experience on all devices
Essential tools free forever
KOIAE is a complete online PDF toolkit that lets you work with your documents without installing any software. Whether you need to merge PDF files into one, split a PDF into separate pages, or compress a PDF to reduce its size, every tool runs fast and keeps your files private.
Convert between formats with ease: PDF to Word, Word to PDF, JPG to PDF, Excel to PDF and more. You can also protect a PDF with a password, unlock a PDF, add a watermark, or make scanned documents searchable with OCR.
Essential tools like merging, splitting and compressing are free forever — no signup, no watermark. Advanced converters, OCR and security tools are part of KOIAE Premium. Most tools process your files right in your browser, so your documents never leave your device — and anything uploaded to our servers is deleted automatically. It works on any device, from Windows and Mac to Android and iPhone.