These forums are now Read Only. If you have an Acrobat question, ask questions and get help from one of our experts.

Problems with merging two PDF files into single PDF

lolorosso
Registered: Feb 1 2011
Posts: 3

When I merge two pdfs into a single pdf using Adobe 9, some of the graphics go missing and random spaces are inserted into the middle of words throughout the combined document. I had the programme reinstalled this week, and at least the first time it worked ok. Then when I tried to add a footer to the combined document, the graphics disappeared again. Is there a fix for this (aside from not combining files?)
 

lolorosso uk

My Product Information:
Acrobat Standard 9.0, Windows
UVSAR
Expert
Registered: Oct 29 2008
Posts: 1357
It shouldn't happen (and doesn't for the majority of documents) so it indicates there's a problem with one or both of the PDFs. Without seeing them it's impossible to tell, but if there are text issues I'd first check to see if all the fonts are embedded in each file (file -> properties -> fonts) and if any that are shared between the two documents have different encoding methods.
lolorosso
Registered: Feb 1 2011
Posts: 3
Hmm, there are differences in the embedded fonts in each file, though those that are shared have the same encoding methods. The two pdf files were converted from Word, then pdf'd and combined to make a single document (report plus appendices). Is the best fix to go back to the Word doc and ensure the same fonts are embedded in both?


lolorosso uk

UVSAR
Expert
Registered: Oct 29 2008
Posts: 1357
You shouldn't need to do anything specific to the Word files, but when Acrobat combines PDFs it tries to optimize the result by removing duplicate fonts, and sometimes that can lead to artifacts. Again as we can't see the files there's not a lot we can do. Is this specific to the PDF files in question, or does it happen to others? Also, are you exporting from Word by printing to the Adobe PDF print driver, or via the Acrobat plugin (on the Word ribbon)? The ribbon method is always recommended as it preserves more of the internal structure of the file.
lolorosso
Registered: Feb 1 2011
Posts: 3
It has been happening to more or less everything I've worked on recently. However, all the documents were created using the same template. I use the Acrobat plugin to export the Word docs to pdfs.

Unfortunately, I can't share the files in question. I'll have another go at it in the morning and see what I come up with.

lolorosso uk

Anja
Registered: Nov 21 2011
Posts: 1
I have the same problem and believe it has something to do with 'consolidating duplicate fonts'. Is there a way, this can be switched off or maybe one font renamed eg. Arial to Arial2?
If this is possible it would only work for me if it can be done automatically as the text is too much to select.
KellyMcC
Acrobat 9ExpertTeam
Registered: Jul 11 2011
Posts: 389
One other note for the Word users, change your PDFMaker settings to use High Quality Print instead of the "Standard" settings out of the box. The Standard set doesn't embed (or subset) ANY of the Microsoft fonts, because everyone with Office has them. The unfortunate part of this is that everyone has a DIFFERENT flavor of Windows and a DIFFERENT flavor of Office.

Fonts are licensed by their model year and maker, so you can end up with several versions of Arial, Times New Roman and Verdana depending on your version of Office, Windows (not to mention 3rd party products that install fonts, such as printer drivers).

Something else you could try (to test and remedy this problem) is editing your PDF Settings for Fonts and UN-CHECK Subset, then CHECK Embed. This FULLY embeds the entire font, all letters, all numbers, all characters, regardless of wether they are used in the PDF. Each font will add 20 - 100 k to the file size if you fully embed (versus the default subset).

Subsetting is recommended for most users, because it produces a smaller, less editable PDF.

Kelly McCathran
Adobe Community Expert
Certified Technical Trainer+