PDF Picasso is free from Guides
Short guides on doing things properly with PDFs, with links to the official sources.
- Drawing revision codes explained: P01, C01, S2What the codes in the title block mean, and which you can build from.
- How to mark up a construction drawingClouds, notes, dimensions and stamps that make sense first time.
- Issuing a drawing setLatest revisions only, a register at the front, old ones taken out.
- How to redact a PDF properlyWhy black boxes can leave text behind, and how to check.
- Electronic signatures in the UK: the basicsWhat the law says, and where to take care.