Problems with PDFBOX and merges

[mbrown174]

Good afternoon
Currently using PDFBOX to merge PDFs and due to the nature these PDFs are created - I am seeing errors when merging with a corresponding report in Mirth. This error is frequently popping up - Wrapped java.io.IOException: Error: Expected a long type at offset 203061

This is the code I am using for my channel

[upstart33]

_{Not sure what that issue is, but I recently put together a little proof-of-concept where I had to merge two PDF's myself that I got working. Maybe the following will help you/lead you to your solution. Unfortunately, this board will not let me past in my code for some reason, so ill have to screenshot it}

[mbrown174]

Thanks for that - it didn't let me post my code earlier but that is exactly what I have. At this point I'm beginning to think it doesn't like one of the PDFs. Don't suppose you know if there is a way to validate a PDF or even change the version using PDFBOX? Checked the forums but nothing so far has been visible.

[mbrown174]

Would iText allow for PDF merging? PDFBOX doesnt seem to like the PDFs - I imagine Mirth would have more than one way for accomplishing this?

[upstart33]

Looking at the error in Google, it seems to indicate an issue with the PDF possibly, such as it being malformed, etc.

[mbrown174]

Had a check - both PDFs are viewable in Acrobat. Its odd. I have switched to itext to see if I can merge the PDFs this way instead.

[siddharth]

Just curious, I have never merged pdf's but what is the goal here with the merge?
Eg. I have 2 PDF's each with 1 page each, and I merge them so I get a new PDF with 2 pages, is that what it means?

[pacmano]

siddharth, yes. Perhaps the better word is "join" or "append" rather than merge.

I use pdftk for that at the command line, so much faster. Then have mirth pick up the files post join.

pdftk 1.pdf 2.pdf 3.pdf cat output joined.pdf