CODEWITHSUNDEEP
vb.netpdf
DreamzLai
DreamzLai

Reputation: 3

PDF version 1.5 and higher not able to view/download in browser

I'm developing a vb.net web application. Recently I face a problem where the PDF file with version 1.5 and higher are not able to view/download through browser. When I click the link to view the PDF file, the browser will prompt a "File Download" message box, when I choose to open the PDF file, the adobe reader display this error "There was an error opening this document. The file is damaged and could not be repaired." Even if I choose "Save" to PC then open the PDF file, it still display the same error message.

The code I'm using for view attachment is as below:

HTTPContext.Current.Response.ContentType = "APPLICATION/PDF" HTTPContext.Current.Response.AppendHeader("Content-Disposition", "Attachment; Filename=XXX.pdf") HttpContext.Current.Response.Flush() HttpContext.Current.Response.WriteFile(System.IO.FileInfo(FILE_PATH).FullName) HttpContext.Current.ApplicationInstance.CompleteRequest()

There is no issue when viewing the PDF version 1.4 and below. Is there any issue with the code? Any solution to resolve this issue?

Upvotes: 0

Views: 748

Answers (1)

Prescott Chartier
Prescott Chartier

Reputation: 1707

This should work for any file type:

Response.ContentType = "APPLICATION/OCTET-STREAM"
Dim Header As [String] = "Attachment; Filename=MyFile.PDF"
Response.AppendHeader("Content-Disposition", Header)
Response.BinaryWrite(MyFile.pdf)
Response.[End]()

Adjust accordingly.

NOTE: There are issues with Adobe Reader in protected mode which may be solved with a settings change. Check this link: https://forums.adobe.com/thread/2208915

Upvotes: 0

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