LZWDecode a PDF File

Today I wanted to dissect a PDF file. Running pdf2ps quickly showed some big lumps of binary data. Looking a bit closer I found out that it is run through the filters ASCII85Decode and LZWDecode. After failing to decode this myself I searched again on the net and found the following blog entry:

Converting a PDF to PS without the LZWDecode filter

So just run the following commands:

qpdf --stream-data=uncompress original.pdf decoded.pdf
pdftops decoded.pdf decoded.ps

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