Guides
Short, step-by-step guides for everyday PDF jobs. Each one works in the free PDFRonin editor, with no account.
- How to edit text in a PDF without breaking the layoutChange words, numbers and whole paragraphs in a PDF online, keeping the original fonts and layout. Step by step, with fixes for common problems. Free, no account.
- How to edit a table in a PDF: cells, columns and rowsChange table cells, add or delete columns and rows, colour cells and keep a table's header on the next page, right in the PDF. Free, no account.
- How to sign a PDF online for freeAdd your signature to a PDF: draw it with the mouse or your finger, type it, or upload a photo of it. What such a signature is legally worth. Free, no account, files never stored.
- How to merge PDFs and turn images into a PDFCombine several PDFs into one, add pages from other files, and turn photos or scans of receipts and documents into a single PDF. Free, online, no account.
- How to reorder, rotate and remove PDF pagesRearrange the pages of a PDF, rotate sideways scans, duplicate pages, add blank pages and delete the ones you don't need. Free, no account.
- How to fill in a PDF form online and flatten itFill in PDF form fields (text, checkboxes, choices), handle forms without fields, then flatten the form so the answers can't be changed. Free, no account.
- How to add text boxes and images to a PDFWrite anywhere on a PDF with text boxes, cover old text with a filled box, insert pictures and logos, and move, recolour or delete what's already on the page. Free, no account.
- How to check a PDF's digital signature (and why editing breaks it)See whether a signed PDF is intact, who signed it and when, what a "valid" signature does and doesn't prove, and why any edit invalidates it. Free, offline check, no account.
- How to edit a PDF on your phone (Android and iPhone)Edit text, sign and fill in PDFs on a phone, in the browser, with no app to install: how touch editing works, saving, and what works differently on iPhone. Free, no account.