iOS Question Validate PDF

[Alex_197]

Hi all.

Is there any option to validate a PDF to make sure that the file isn't corrupted?

Let's say a user has a pdf on his phone. In my app he needs to select a pdf, view it and if it's Ok click a button Send and send it to the server. But what if the PDF on his phone is corrupted or damaged and can't ve opened? I want to check it and if it the case notify the user about it.

Thanks.

 

[Erel]

You can try to open it with Canvas (https://www.b4x.com/android/forum/threads/reading-and-writing-pdf-documents.48308/#content) and catch errors if they happen.

I haven't checked it with corrupt files.

 

[Alex_197]

You can try to open it with Canvas (https://www.b4x.com/android/forum/threads/reading-and-writing-pdf-documents.48308/#content) and catch errors if they happen.

I haven't checked it with corrupt files.

I tried it - no errors, just a blank screen

 

[Erel]

What is the value of PDFDocument.NumberOfPages?

 

[Alex_197]

What is the value of PDFDocument.NumberOfPages?

Copying updated assets files (3)
Application_Start
Application_Active
pdf.NumberOfPages=0
Application_Inactive
Application_Active

 

[Erel]

Looks like the solution you are looking for.

 

[Alex_197]

Looks like the solution you are looking for.

yes it is. Now I'm looking for the same solution for Android