_create_pdf_info_dict(backend, metadata)
A default Creator
, Producer
, and CreationDate
are added, though the user metadata may override it. The date may be the current time, or a time set by the SOURCE_DATE_EPOCH
environment variable.
Metadata is verified to have the correct keys and their expected types. Any unknown keys/types will raise a warning.
The name of the backend to use in the Producer value.
A dictionary of metadata supplied by the user with information following the PDF specification, also defined in ~.backend_pdf.PdfPages
below.
If any value is None, then the key will be removed. This can be used to remove any pre-defined values.
A validated dictionary of metadata.
Create a PDF infoDict based on user-supplied metadata.
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