如何使用PHP，TCPDF和FPDI在PDF中获取文本位置？

Question

I have an issue: I need to upload some PDF template with data and then change it. For example, in PDF file is string:

NAME:

I need get position of this string and insert some text (username etc.) after it.

Is it possible ?

Update

The PDF isn't encrypted. Text is embedded as text.

Answer 1

If the PDF isn't encrypted (no master/client password), and the text is embedded as text and not as a rendered image, you can just do some basic string search/replace on it - PDFs are essentially Postscript code, and you can treat that as plain text for the most part.