How can I copy photo caption in Whatsapp? How can I copy photo caption in Whatsapp?

I tried to copy photo caption but it not able to select text.
Yes you can, but not forwarding but using sharing option.
If you received a message with captions OR you sent an image with caption and you want to share/forward the same message with multiple contacts, then
Select the image with caption -&gt; Press Share (instead of forward) -&gt; Choose Contacts
Voila! You can now share image with captions :)

Source : How can I forward an image with captions in WhatsApp?
UPDATE
Follow these steps for sharing a media with captions.

Select the media with caption
Click on vertical triple dot icon on top right corner
It will open a menu and it will have a share menu item
Clicking on share menu item will show the list of apps
Select WhatsApp and then choose the contact to whom the media is to be set with caption (refer below given screenshot).