I use "combine files into single file" daily. A typical pdf is created from pdfs from multiple applications ie autocad, office etc. I am using a new program that only outputs my file to a pdf portfolio. The portfolio has will have multiple pdf's within it (obviously) for example we'll say pdf 1,2,3 and 4. These 4 pdf's are a total of 12 pages.
I need these 12 pages of the portfolio to be part of merged pdf file where I've combined pdfs from autocad, office. I've tried extracting the pdfs from the portfolio but when I add the indiviual pdf's (from the portfolio) to my new combined pdf I get 4 copies of file #1 added to the pdf and files 2-4 don't get added to the new combined pdf.
Any input would be appreciated
I am just focusing on your first paragraph, where you state you are creating a Portfolio instead of a combined PDF. You also state that you're "using a new program." What program is that? Are you using a new version of Acrobat or some other program?
If it's Acrobat, when you go to combine files, there is a gear icon in that window. If you click on that, you can turn off, by unchecking, the option to create Portfolios
Would that solve all your problems?
There's probably a good reason it does that. For example, if the files are signed it means they can't be merged to a single PDF, or if they were created using LiveCycle Designer, or if they have form fields with the same names (which will overwrite some of the data) or same names but different types (which will prevent merging entirely).