Resolve issues with scanned PDF previews

By default, file previews are SVGs, a file format that displays well on high-resolution monitors. In some organizations, SVG file previews of scanned PDFs are not rendering completely or at full size. Salesforce has created a preference that lets you change the preview file type from SVG to JPG.

Note: You should display alternative previews only if your users have had trouble with scanned or compressed PDF previews. For starters, SVG previews look better on high-res devices. And if you enable alternative previews, all existing file previews have to be produced again, which causes delays for users. We recommend the default settings unless you’ve had issues.

Hyperforce doesn’t support the SVG file preview format. Any org hosted on Hyperforce defaults to JPG file preview format regardless of the org preference in Setup. For more information, please review What happened to SVG file previews? in Introducing Hyperforce - General Information & FAQ

Where: This feature is available in Lightning Experience in all editions, except Personal Edition.

How: See the new preference in the Setup menu under Files Settings. Select Display alternative file previews to enable.


In Salesforce Classic:

1. Go to Setup | Build | Customize | Salesforce Files | Settings | General Settings.
2. Click Edit.
3. Enable Display alternative file previews.
4. Click Save.

In Lightning Experience:

1. Switch To Lightning Experience.
2. Click on the gear icon.
3. Click on Setup.
4. Search for Files in Quick Find.
5. Under 'Salesforce Files,' click on General Settings
6. Click Edit.
7. Enable Display alternative file previews.
8. Click Save.