You're reviewing a design mockup and want to say 'this button should be aligned with this header'. Words alone don't do it. An arrow makes it instant.
Flint's annotate tool has arrows.
Drag to draw an arrow
Open annotate PDF, select the arrow tool. Click and drag from where the arrow starts to where it ends. Release. The arrow appears with a head at the endpoint. Adjust by dragging the endpoints to fine-tune length and angle.
Style controls
Pick the colour, thickness, and head style. Red for issues, green for positive callouts, blue for general comments — develop a colour code with your team. Thickness affects visibility: thin arrows for subtle pointers, thick arrows for major callouts. Solid vs dashed line, single vs double-headed — all available.
Group arrows with comments
An arrow by itself says 'look here', not 'why I'm looking'. Add a sticky note or text comment near the arrow's tail with the actual point. Or use the arrow's built-in comment field if your reader supports it. Either way, the arrow leads the eye and the comment explains.
Removing or adjusting arrows
Click any arrow to select it. Drag endpoints to reshape. Drag the body to move it. Hit delete to remove. All adjustments happen live; saving commits the final state to the file.
FAQ
Can arrows be curved?
Standard PDF arrows are straight. For curves, use ink/freehand drawing.
Do arrows print?
Yes by default. Most readers have a 'don't print annotations' option if needed.
Can I copy an arrow style across documents?
Not directly. Recreate the style (colour, thickness) when annotating new files. Or save a styled-template PDF and reuse.
Will the recipient see my arrows?
Yes — any modern PDF reader displays arrows. Saved into the file.
Drag, drop, point. Add arrows.