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WendyCh
Known Participant
February 19, 2008
Answered

.chm file size

  • February 19, 2008
  • 1 reply
  • 1580 views
Hi Everyone-
I converted a RoboHelp v4 project to a v7 project. The orginal project had links to multiple external .pdf files. While converting, I also updated the project which forced me to add a few more links. I expected the outpul file size to increase but it increased drastically, going from about 10 MB to 180 MB. This makes it look like the files are embedded in the project but I know they're not. I did have the "optimize chm file size" selected, but is there another way to reduce the size while keeping the links?
Thanks,
Wendy
This topic has been closed for replies.
Correct answer Pete_Lees
Wendy,

If the HTML Help compiler follows the path that you specify in a hyperlink and finds a file at the end of it, it will pull the file into the help file. So you just need to ensure that, when you compile, any files that you don't want to be embedded in the help file are located elsewhere — really, anywhere other than the locations specified in the hyperlinks.

Pete

1 reply

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Pete_Lees
Participating Frequently
February 19, 2008
Wendy,

The KeyTools utility available from http://www.keyworks.net/keytools.htm provides an Examine CHM File feature with which you can peek inside a .chm file. This should enable you to confirm whether or not any unwanted files have been pulled into the .chm file at compile time. However, bloating on that scale would normally indicate that the compiler has dragged in a lot of unwanted stuff; any local files to which there are links in the source topics are normally embedded in the .chm file.

KeyTools also provides a Recompile feature that can help to optimise the size of the .chm file without breaking any of its functionality.

Pete
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WendyChAuthor
Known Participant
February 19, 2008
Thanks, Pete,
I downloaded Keytools and found that some of my graphic files are huge. I'm going to try to convert those and see if that helps to reduce the size.
Do you know how I can make sure that those links to the PDFs, which are local on my PC, aren't embedded into the .chm file?
Thanks again!
Wendy
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Pete_Lees
Participating Frequently
February 20, 2008
Hi Pete-
It worked! I moved my folder of PDFs when I compiled. I then placed the folder back into my project file when viewing the compiled .chm. Everything linked perfectly!
Thank you!!!
Wendy,

Sorry but, not for the first time, I wasn't thinking straight.

As a rule, you use standard hyperlinks to make links to files that are to be compiled into the help file, and ShortCut controls to link to files that are to be left outside it. The online help for RoboHelp should provide some information on how to insert these controls.

There are several things to watch for if you decide to use ShortCut controls:


  • Because of something called the " relative path bug", these controls may not work properly in help files that are opened context-sensitively by the associated application. There are ways to work around this using JavaScript.

  • The controls don't work at all in help files that are stored remotely on network drives.


Pete
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