Show PDF documents stored in Azure Blob Storage in the Previewer

Hi Harm,

The Preview component is unable to show the file as the file is not truly a file at that stage. The file data is not obtained when the Preview component reads the URL as it lacks the metadata that would otherwise enable the Preview to preview the file.

We can look into adding this capability to also preview Blob storage files, but some things will need to be changed on our side to make that happen. I'll convert this topic to an idea for you.

Hi ​Mark,

Thank you. It’s a pity that this won’t work for now, but I more or less understand the limitation. An additional drawback of downloads is that end users’ download folder become full in no-time.

The only workaround I can think of is to temporarily store the file as varbinary in a table and clean up that table periodically.

I tried saving the pdf in the database, by means of a process flow that downloads the file to the database etc. That all works fine. But het end result is the same.

Other application that use the previewer in combination with Azure File Storage do not show pdf files either.

Now I did a final test and open the same table/screen in the Windows GUI, see the result below. Can you explain this?
 

Hi Harm,

Looking into the code, Windows GUI did indeed download the files from the File storage when selecting a record; something that Universal GUI doesn't do. I see you have created a ticket for this. I feel this should be part of the Feature parity between Windows GUI and Universal GUI. We'll make sure the correct team gets the ticket for further processing.