When making a QR code for a PDF, the single biggest decision is static versus dynamic. It affects cost, whether the code can expire, and what you can do after printing. Here's a clear comparison so you choose the right one the first time.
Static PDF Codes
A static code encodes your PDF's link directly. It's free, permanent, and never expires on its own. The catch: you can't change where it points or see scan data. If your document and its link are stable, static is simple and bulletproof.
Dynamic PDF Codes
A dynamic code points to a redirect you control, so you can swap the PDF, fix a broken link, or update the document without remaking the code. You also get scan analytics. The trade-offs are an ongoing cost and dependence on the service staying active.
How to Decide
Choose static for a fixed document you won't change, especially for a free, set-and-forget code. Choose dynamic when the PDF may be revised, when you need scan tracking, or when the code will be printed widely and you want insurance against link changes.
Either Way, Host Well
Both types ultimately rely on your PDF staying available. Whichever you pick with a PDF QR generator, host the document somewhere stable and test the code on a phone before printing.
FAQ
Common questions are answered in the FAQ section below.