Annex Q. (normative) Method for determining transparency on a page

Q.2. Page content

Change the last paragraph as follows:

Since Annotations require an appearance stream which is drawn by a PDF processor on top of the page content, it is possible that their presence may cause a page without any transparency to acquire some transparency. Therefore, all annotations object's in the page dictionary's Annots array shall have their appearance streams processed as a form XObject, according to Q.3, "Form XObjects". Any annotation that has a BM key (PDF 2.0) in the Annotation dictionary with a value other than Normal shall be considered to contain transparency (see "Table 166 - Entries common to all annotation dictionaries").

Last modified: 9 May 2022