I just figured out how to do this myself. We had consultants that built a couple QVW applications for us and I wanted to use the same background image, company logo's etc.. they did. But the images were no where to be found. So I set out to figure it out.
Basically images are Base64 encoded in the QVW.
Note - these steps were done in QlikView 11.2 SR1 - so your milage may vary.
Here are the steps:
To extract embedded images in a QlikView application (.qvw file).
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1) Create a directory to export the document layout into.
2) Open QVW file.
3) File --> Export --> Export Document Layout
4) Select directory you created and click "Ok" - full document layout will be exported into this directory.
5) Open .xml file and copy out the base64 encoded "text".
For instance the document "wallpaper".
Open: DocProperties.xml
Go to "WallpaperPic" XML tag.
Copy everything between <WallpaperPic enctype="base64"> and </WallpaperPic>
Or in a text Object:
Open the TX##.xml file.
Go to the <Bmp enctype="base64"> tag
Copy everything between <Bmp enctype="base64"> and </Bmp>
Basically - any .xml file with an XML tag with a "base64" property on it is an embedded binary (image, audio, video etc...) or text. You just have to know which kind it is.
Go to:
Base64 Online - base64 decode and encode
http://www.motobit.com/util/base64-decoder-encoder.asp
Conversion Steps:
1) Copy/Paste the Base64 encoded "text" into the text box
2) Select "decode the data from a Base64 string (base64 decoding) "
3) Output data:
If a Binary object:
"export to a binary file" - set "filename:" to the name of the file to export to with a .png extention (or whatever extention type of the binary).
If text:
"output to a textbox (as a string)"
Hope this helps (this is my first "solution" on QlikCommunity).
