How to Add QR Codes to PDFs with Python

In automated document generation, product labeling, or information distribution scenarios, it is often necessary to insert QR codes into PDF documents. QR codes can quickly store and transmit information, allowing users to access relevant content by scanning with their mobile phones. This article will introduce how to generate and insert QR codes into PDF documents using Python. Environment Setup First, you need to install the necessary Python libraries. This article uses Spire.PDF and Spire.Barcode libraries to handle PDF documents and generate QR code images. pip install Spire.PDF pip install Spire.Barcode Technical Approach There are two main methods to insert QR codes into PDFs: Generate QR code image first, then insert it as an image into PDF - Use a barcode generation library to create a QR code PNG image, then embed it into the PDF page Draw QR code directly on the PDF canvas - Some libraries support drawing barcodes directly in the PDF graphics context This article will demonst