PDF Guides
Clear, practical tutorials to get the most out of your PDF documents: reduce their size, protect them, merge, convert or sign them — with free tools that respect the confidentiality of your files.
How to reduce a PDF's file size without losing quality
Lossless compression, removing unneeded pages, metadata, images: every technique that actually works to slim down an oversized PDF — without uploading it anywhere.
Read the guideHow to protect a PDF with a password
AES encryption, open vs owner passwords, print and copy permissions: everything you need to lock down a sensitive document without sending it online.
Read the guideHow to merge multiple PDFs into a single file
Rental applications, job applications, invoicing: the complete method to combine several PDFs into one well-ordered document — with no limits and no watermark.
Read the guideHow to convert a Word document to PDF
CV, thesis, contract: why PDF is the right format to send, how to convert a .docx cleanly, and the checks to run before you hit Send.
Read the guideHow to sign a PDF online, without printing or scanning
Draw your signature with a mouse or finger and place it on the right page in thirty seconds — no printer, no scanner, and the document never leaves your device.
Read the guide