10. Troubleshooting

Collection of some points which could cause errors:

The template PDF file can not be read

The template PDF must be readable for the extension tcpdf_ext, it must be available in the PDF specification format 1.4 (Acrobat 5.x). Recent PDF versions must be converted to the older format before.
In Adobe Acrobat on "Save As ..." select "Adobe PDF files optimized (*.pdf)" and then adjust the settings to "Acrobat 5.0 and higher."

The text does not have the right position in the form PDF generator

The measured positions usually have a fixed offset, which comes from the over- and under-lengths in the font. The easiest way is to set a text on test position and measure the difference to the desired position. This basic offset can be entered in the form properties and will calculate in the output at each position.

There are fields that do not exist in PDF form, but should be output in the document anyway.

Simply enter an additional page number, if the target page is not included in the template, a blank page is added where additional information can be placed in the same way.