The Photo Markup feature in Fulcrum allows users to sketch graphics and add text stamps on top of photos, without ever having to leave the app. This enables data collectors to quickly call out features of interest directly on the photo immediately after it has been snapped in the field.
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Click here for more general information on Photo Markups.
Click here for a step-by-step photo markup guide for iOS.

From within a record, task, or issue, tap an attached photo and select the Markup action.
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​Note: If you do not see the Markup action as an option, markups are likely not enabled for that field. See here for information on how to enable markups for a specific photo field when creating/editing the app.

Once in markup mode, you have the ability to draw, add shapes, or add text to the photo.

Use the Draw tool to draw freehand markups.

Tap Shapes to select and add a circle, square, arrow, or line.
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Tap Text to add text to the photo. After entering the desired text and selecting the color, tap Done. The text will be added to the center of the photo but can be moved, resized, and rotated. To move the text, select with your finger and drag it to the desired location. To resize the text, pinch/expand with two fingers until it is the desired size. To rotate the text, select with two fingers and rotate.

The eraser on the bottom toolbar will allow you to erase any markups placed on the photo during your current markup session.

The toolbar at the top of the screen has tools for undoing the last sketch (back arrow), redoing the last undo (forward arrow), and closing the markup session ("Save").

Note that saving your markups will overwrite the original attached photo. If you want to retain the original, make sure to enable saving to the camera gallery.