Speeding download of large sized file

Hi,
I could really use some help. Im stumped. Im using Livecycle Designer ES and have a large form with a lot of graphics (~15 MB), Im planning on emailing it to customers, but its so large it is impractical. Ive tried getting rid of objects but am down to the core information so cant reduce the size that way. 2 questions:
1) Is there a way within Livecycle or through publishing in Acrobat that I can significantly further reduce the size of the file? Ive read the Adobe documentation and have already tried their suggestions (e.g. using one of the supported fonts instead of embedding a font, etc.)
2) If I cant significantly reduce the file size, is there a way that I can do something to make the user not wait as long for a download? I had 2 ideas but dont know if they are at all doable:
a. Package the pdf file with a download accelerator that will work just for that file to speed up the download, and doesnt need a separate installation. Does anyone know if there is such a product?
b. Split the large pdf file into sections. Have the user download the first section. While s/he is filling that out, in the background be downloading the next section, and so on. If this is programmable, could someone explain how to approach it.
Thanks very much for any help with this. This is a great forum.
Jeff

Hallo David,
the only "improvement" or workaround I see in NW 04 is to use the Web Dynpro Binary Cache to store your large resource. In NW 04s there is a more elegant solution called "on demand streams" but it is not applicable in NW 04.
Try the following workaround:
- Do not store your large resource in a context value attribute of type binary (like it is described within the tutorial on FileUp/Download https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/d2201c20-0801-0010-49b3-94fca8f590d5)
- Do not use the FileDownload UI Element
- Instead use a LinkToURL UI Element and bind it to a context attribute with name 'ResourceURL' of type String. The large resource is not written to the context but it is written to the Web Dynpro Binary Cache as an object of type java.io.InputStream.
See ExcelExport Tutorial https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/1208c2cd-0401-0010-4ab6-f4736074acc6
and the <a href="https://media.sdn.sap.com/javadocs/NW04/SPS15/wd/com/sap/tc/webdynpro/services/sal/url/api/WDWebResource.html">JavaDoc on WDWebResource</a>:
static IWDCachedWebResource getWebResource(InputStream input, WDWebResourceType resourceType)
Returns an IWDWebResource for a given web resource.
- Try IWDCachedWebResource.setAttachement(true)
- Store the URL of the cached web resource within the context attribute 'ResourceURL' to which the LinkToURL UI Element is bound to.
Please try out this approach and tell me whether it circumvents your OutOfMemory problem.
Regards, Bertram

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