After publishing or reblogging photo posts on Tumblr, certain themes may not show any text, or captions, beneath those posts on your blog’s home page. This occurs due to permalink tags that surround the caption sequence on your Tumblr theme’s HTML code. You can, however, make your theme display photo captions by deleting the permalink tags using Tumblr’s HTML editing tool.

Step 1

Sign in to your Tumblr dashboard.

Step 2

Select a Tumblr blog from the upper right of the window, and then click the “Customize” link.

Step 3

Click the option labeled “Edit HTML” on the left navigation pane.

Step 4

Press “Ctrl-F” to open the HTML search bar. Search for the “{block:Photo}” and “{/block:Photo}” tags (without quotes) to locate your theme’s block of HTML code for photo posts.

Step 5

Locate the “{block:PermalinkPage}{block:Caption}{Caption}{/block:Caption}{/block:PermalinkPage}” sequence within the photo posts block and then delete both the “{block:PermalinkPage}” and “{/block:PermalinkPage}” segments. The end result should look like "{block:Caption}{Caption}{/block:Caption}."

Step 6

Click “Update Preview.” All captions under photos should now show up on the preview screen to the right.

Step 7

Click “Save,” click the back button on the HTML editing pane, and then click “Exit.”