[tx] Add safety initialization of pdwCtx structure in pdwNew #1474
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Description
Updates to pdfwrite.c to avoid an out-of-bounds read error with malformed input files in
tx -pdf
mode caused by an uninitializedpdwCtx
structure. Version numbers for pdfwrite and tx were also updated.Checklist:
I have added test code and data to prove that my code functions correctlyI have made corresponding changes to the documentation