Possible fixes
Searches for the producer of the document in the document properties of the PDF. The producer
refers to the application used to generate the PDF, for example Acrobat Distiller XI. You can
check:
- Whether or not the producer is defined.
- If it is defined, whether or not it contains a particular string (e.g. "PDFWriter")
The document properties of a PDF include basic information about the PDF, such
as the title, the author, the document creator, .... Some of this information is set by the
person who created the PDF, some is set by Adobe Acrobat.
Note: To search for more than one string, use a comma to separate the strings, for example:
"InDesign, Photoshop".
If the producer is not defined, you can automatically set this field to "unknown". It is not
possible to change the producer in the Document properties field.