Hi Johan,
to best of my knowledge
a) Fast Web View / Linearization
PDFBox doesn't have specific code for linearization so something like
isLinearized() or isFastWebView() is not available. In order to find out for
yourself if a pdf is linearized you can look up the existence of a
linearization parameter dictionary which must exist within the first 1024 bytes
of the pdf. The layout is like this:
<< /Linearized 1.0 % Version
/L 54567 % File length
/H [475 598] % Primary hint stream offset and length (part 5)
/O 45 % Object number of first page’s page object (part 6)
/E 5437 % Offset of end of first page
/N 11 % Number of pages in document
/T 52786 % Offset of first entry in main cross-reference table (part
11)
>>
The complete spec can be found in Annex F of ISO-32000
b) Compressed stream objects
PDFBox does deal with compressed stream objects just fine. Unfortunately there
is currently no document info I know of which is set if a compressed stream
object is encountered.
c) Commenting
Please review
http://pdfbox.apache.org/apidocs/org/apache/pdfbox/pdmodel/PDDocument.html#getCurrentAccessPermission%28%29
and
http://pdfbox.apache.org/apidocs/org/apache/pdfbox/pdmodel/encryption/AccessPermission.html
With kind regards
Maruan Sahyoun
> Hi, am still hoping for help on if PDFBox can determine these attributes.
> Thanks again ----- Original Message -----
> | Hi All,
> | How can I determine in Java if a PDF file matches these requirements?
> | • The file is optimized for Fast Web Viewing.
> | • The file does not contain compressed stream objects.
> | • The Document restrictions allow Commenting. // Am using
> | ap.canModifyAnnotations()
