Add document preview to Document library form

Question

I need to create form to enter metadata for newly uploaded document in document library in SharePoint Online. In that form user should be able to see preview of uploaded document. Actually, user should see document in preview and write down necessary data into fields. Documents could be Office or PDF files.

Should I create new EditForm.aspx in SharePoint Designer? What code should I write there? Where should I place that code?

Answer 1

I've found simple solution. Here is step-by-step guide:

1. Download jquery.min.js and put it, for example, in Assets library.

2. Open Document library (one where you want to have preview on editform) and on ribbon click Library - Form Web Parts - Defalut Edit Form

3. On Edit Form page click Add a Web Part and insert Content editor Web Part.

4. Click Edit Source and add following code:

   <div id="OpenRelativeCard" style="margin-left:-10px;">
               <iframe id="LSViewDocInTask" style="width: 700px; height: 800px;"></iframe>
   </div>
   

5. On Edit Form page click Add a Web Part and insert Script editor Web Part

6. Click Edit Snippet and add following code (replace URLs with yours):

   <script language="javascript" type="text/javascript" src="/sites/dev/PreviewFormDocLib/jquery.min.js"></script>
   <script type="text/javascript">
   $(document).ready(function () {
   var strDocNameEncoded = encodeURI($('input[id^="FileLeafRef"]').val());
   var strDocExt = $('input[id^="FileLeafRef"] + span').html();
   if (strDocExt=='.doc' || strDocExt=='.docx' ||strDocExt=='.xls' || strDocExt=='.xlsx' ) {
   
   var strDocUrl = "https://yourdomain.sharepoint.com/sites/dev/_layouts/15/WopiFrame.aspx?sourcedoc=https://yourdomain.sharepoint.com/sites/dev/PreviewFormDocLib/" + strDocNameEncoded + strDocExt + "&action=default";
   } 
   else {
   var strDocUrl = "https://yourdomain.sharepoint.com/sites/dev/PreviewFormDocLib/" + strDocNameEncoded + strDocExt;
   } 
   $('#LSViewDocInTask').prop('src', strDocUrl );
   });
   </script>
   

7. Make sure that you arrange Web Parts in following sequence:

   1) Metadata fields

   2) Content Editor

   3) Script Editor

It's important to place Content Editor above Script Editor

7. Click on ribbon Page - Stop Editing - Stop Editing

Here is result: