Annotate and Mark Up PDFs

Overview

PDF JustFit includes the markup tools people actually use on documents: highlighting a clause, drawing an arrow to a figure, erasing a mistake and adding a note in the margin.

Markup tools

• Highlight — mark passages that matter.
• Draw — annotate diagrams and add freehand notes.
• Erase — remove a mark without starting over.
• Add text — type a note onto the page.
• Signature — place a handwritten signature.

Apple Pencil and finger input

Markup works with Apple Pencil on supported iPads and with a finger on both iPhone and iPad, so annotation is available whatever device the document arrives on.

Flattened export

Annotated documents can be exported as flattened, share-ready PDFs in a single tap, so marks travel with the page rather than sitting in a separate annotation layer.

Key facts

• Draw, highlight, erase, add text
• Apple Pencil and finger input
• Colour picker for ink and highlights
• Flattened PDF export

Available in PDF JustFit: Compress, AI Chat on iPhone and iPad. Requires iOS/iPadOS 26.5 or later. US price $9.99.