itext - How to merge PDFs into a PDFA1b with watermarks using iText5 -


here need do:

  • merge several pdf documents (which may or may not pdfa) 1 pdfa1b.
  • add watermark (a simple text label) on each page of resulting pdf.

it has itext 5

i have looked @ official merging example: http://developers.itextpdf.com/examples/merging-pdf-documents/adding-cover-page-existing-pdf

but can method used create pdfa, , add watermarks? or stuck using other method says not use: http://developers.itextpdf.com/examples/merging-pdf-documents-itext5/how-not-merge-documents

you can create files conform pdf/a-1b pdf library including itext. pdf/a, in general, subset of iso 32000 (pdf) it's matter of using tool need files not adding forbidden pdf/a-1b (in case).

the thing aware of itext or of other libraries "support" pdf/a, will not prevent modifying pdf in way forbidden pdf/a... need know things are.

so... before merging, you'll want sure input files don't have annotations or form fields or other interactive content.

after merging, add watermark page content , sure xmp metadata conforming , should ok.


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