How to hook file open action using plugin?

[BrainChen@adobeforums.com]

I would create a plugin to decompress file which compress by my other tools. In my mind,I will do this before file is opening, in sample "RplcFileSystem", this only hook this action which open from plugin. How could I do in "PluginInit"?

[Leonard_Rosenthol@adobeforums.com]

I am not sure that I am following.

You are compressing a PDF using some other method, yes? Why? PDF is already partially compressed and recompressing it may, in many cases, actually ENLARGE the PDF. And, of course, it makes it impossible for others to read your document.

If you do wish to do this, then you have two choices - either a custom file system OR an AVConversionHandler. Personally, I'd go with the second option since it's easier and better integrates with Acrobat.

Leonard

[BrainChen@adobeforums.com]

Leonard ,thanks
I think, I would chose the first option. because I need open file from memory like the another topic:Can Acrobat load document from memory .

[BrainChen@adobeforums.com]

Leonard:
How to use AVConversionHandler to capture file open event?
I search this in sample code, is this?
strcpy (gConversionHandler.uniqueID, kPIUniqueID); // set the uniqueID to special operator?
gConversionHandler.convert = ASCallbackCreateProto (AVConversionConvertFromPDFProc, ConvertFromPDFProc); // set the process callback?

[Leonard_Rosenthol@adobeforums.com]

Your AVConversionHandler will get called when a user opens a file of your custom type (since your file won't be a PDF, it will be something else).

This is how Acrobat handles opening Word, Excel, etc. files.

There is a sample in the SDK of how to create a ConversionHandler and fill it with the necessary methods. It can support both file and memory based conversion.

However, I am still confused about how you plan to get this memory to Acrobat. If you just wish to open a PDF from memory (compression not with standing), then you want a custom filesys (again, see the SDK samples).

Leonard

[BrainChen@adobeforums.com]

Leonard:
Thanks. I find the "SecurityHandler" sample meet my requitment.I think I had bad method on the begining :(

[Aandi_Inston@adobeforums.com]

Is your plug-in eventually intended to work with Adobe Reader? If so,
be aware that this has special and stringent licensing requirements,
being a DRM plug-in, and the licensing cost may be $35K minimum.

Aandi Inston

[BrainChen@adobeforums.com]

Aandi Inston:
My plugin only run in Arcobat.It's too much cost for it to run in Reader.