Converting Tif Files to Pdf in vb

[jamesocw@adobeforums.com]

hi all,

have succeeded on converting tif file to pdf using vb codes below->

Dim AcroApp As CAcroApp
Dim avDoc As CAcroAVDoc
Dim PDDoc As CAcroPDDoc
Dim IsSuccess As Boolean

Set AcroApp = CreateObject("AcroExch.App")
Set avDoc = CreateObject("AcroExch.AVDoc")
Call avDoc.Open(filename, "")
Set avDoc = AcroApp.GetActiveDoc
.................
................

However, i realised that the converted pdf file is no longer searchable like the original tiff file. How can i do a text recognisation when/while converting to pdf file?

[Leonard_Rosenthol@adobeforums.com]

First, a TIFF file is NEVER searchable as it can't contain text. It is just an raster image. So I am not sure why you believe otherwise.

Second, The use of the AVDoc.Open() command to convert files to PDF is not supported by Adobe (though yes, we are aware that it works).

Leonard
Adobe Systems

[jamesocw@adobeforums.com]

hi..

am just wondering if i could do a OCR process then a text search and it works! Other hand, when i convert the tiff file to pdf, it indeed not searachable in the converted pdf file. However, when i do a pdf OCR process to the pdf file, the file became text searchable!!!..

thus, i figuring if i can do a conversion to a pdf file, then a OCR process to it and save the searchable pdf file and its done!But i am not sure which function to call in the PDF SDK.

[Leonard_Rosenthol@adobeforums.com]

The OCR functionality of Acrobat is only available to Plugins - not via COM or JavaScript.

Leonard

[jamesocw@adobeforums.com]

hihi..

Is there a way which i could make use of the plugins in my VB Code and the PDF Full version to do the job?

[Aandi_Inston@adobeforums.com]

You would have to write your own plug-in with C++.

Aandi Inston

[Leonard_Rosenthol@adobeforums.com]

To follow up on what Aandi said...

You would have to write your own plugin that called on the OCR feature of Acrobat and exposed a COM interface.

Then your VB code would call that exposed COM interface.

Leonard