Can I use Acrobat XI to convert an HTML page that contains a flash (.flv) movie to PDF and have it automatically include the flash movie, or must that be added after the initial conversion?
The answer is Yes but with a disclaimer.
In Acrobat, if you go to
Create-> PDF From Web Page-> (Web Page Conversion) Settings -> (HTML Conversion) Settings.
there is a drop down list in "Other Settings" named "Multimedia Content:".
If "Embed multimedia content when possible" is selected, the content is captured in PDF but I think the code is optimised (for performance, referenced swfs etc.) and it is decided on the go whether to capture multimedia or not.
Do let me know the details of your case and I hope I'd be able to help more.
Using Dreamweaver CS6 to make a minimal HTML page with one line of text and a .flv movie. The movie was embedded in the page using the automatic functionality of Dreamweaver. Then used Acrobat Pro XI to convert the HTML page to PDF with "Embed multimedia content when possible" selected. The .flv file does not get placed in the PDF page; there is nothing present where it should be.
I conclude that "when possible" does not apply in this case, unless there are settings needed on the html page that are missing (although the page works fine on a browser), or additional settings needed in the conversion process. Perhaps something other than .flv coded movie is needed?
It's likely that Acrobat is embedding the SWF player for your video but it won't embed the FLV file itself - and if the parameters for the player don't specify the URL of the media it won't be found when the PDF tries to connect.