> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/ios/ui-customization/tool-subclasses.md). # Tool class hierarchy Discover the capabilities of PTAnnotEditTool, PTLineEditTool, PTDigitalSignatureTool, and more in this comprehensive guide to editing annotations and creating various types of annotations. Start enhan ## Reference * [`PTAnnotEditTool`](https://sdk.apryse.com/api/ios/Classes/PTAnnotEditTool.html) : Allows one to edit a selected annotation. This includes such operations as moving and resizing. * `PTLineEditTool`: Allows one to edit a selected line or arrow. This includes such operations as moving and resizing. * [`PTDigitalSignatureTool`](https://sdk.apryse.com/api/ios/Classes/PTDigitalSignatureTool.html): Creates signature stamp annotations as well as demonstrates how to digitally sign a document by using one of its signature fields. * [`PTFormFillTool`](https://sdk.apryse.com/api/ios/Classes/PTFormFillTool.html): Allows one to fill forms. * [`PTFreeTextCreate`](https://sdk.apryse.com/api/ios/Classes/PTFreeTextCreate.html): Creates [PTFreeText](https://sdk.apryse.com/api/ios/Classes/PTFreeText.html) annotations. * [`PTPanTool`](https://sdk.apryse.com/api/ios/Classes/PTPanTool.html): The Pan tool selects a tapped-on annotation and switches to the annotation edit tool on a single-tap event, and brings up the annotation creation menu upon a long-press event. * [`PTRichMediaTool`](https://sdk.apryse.com/api/ios/Classes/PTRichMediaTool.html): Plays video when an annotation with [RichMedia](https://sdk.apryse.com/api/ios/Enums/PTAnnotType.html#/c:@E@PTAnnotType@e_ptRichMedia) is tapped. * [`PTCreateToolBase`](https://sdk.apryse.com/api/ios/Classes/PTCreateToolBase.html): The base class for several shape creation classes. * [`PTRectangleCreate`](https://sdk.apryse.com/api/ios/Classes/PTRectangleCreate.html): Creates rectangle annotations. * [`PTRectangleRedactionCreate`](https://sdk.apryse.com/api/ios/Classes/PTRectangleRedactionCreate.html): Creates rectangular [redaction](https://sdk.apryse.com/api/ios/Classes/PTRedactionAnnot.html) annotations. * [`PTEraser`](https://sdk.apryse.com/api/ios/Classes/PTEraser.html): Erases [Ink](https://sdk.apryse.com/api/ios/Classes/PTInk.html) annotations. * [`PTFreehandCreate`](https://sdk.apryse.com/api/ios/Classes/PTFreeHandCreate.html): Creates [Ink](https://sdk.apryse.com/api/ios/Classes/PTInk.html) annotations. * [`PTLineCreate`](https://sdk.apryse.com/api/ios/Classes/PTLineCreate.html): Creates [line](https://sdk.apryse.com/api/ios/Classes/PTLineAnnot.html) annotations. * [`PTArrowCreate`](https://sdk.apryse.com/api/ios/Classes/PTArrowCreate.html): Creates [line](https://sdk.apryse.com/api/ios/Classes/PTLineAnnot.html) annotations with an arrow ending style. * [`PTRulerCreate`](https://sdk.apryse.com/api/ios/Classes/PTRulerCreate.html): Creates [line](https://sdk.apryse.com/api/ios/Classes/PTLineAnnot.html) annotations with distance measurement information. * [`PTEllipseCreate`](https://sdk.apryse.com/api/ios/Classes/PTEllipseCreate.html): Creates [circle](https://sdk.apryse.com/api/ios/Classes/PTCircle.html) annotations. * [`PTStickyNoteCreate`](https://sdk.apryse.com/api/ios/Classes/PTStickyNoteCreate.html): Creates [sticky note](https://sdk.apryse.com/api/ios/Classes/PTText.html) annotations. * [`PTPolylineCreate`](https://sdk.apryse.com/api/ios/Classes/PTPolylineCreate.html): Creates [polyline](https://sdk.apryse.com/api/ios/Classes/PTPolyLine.html) annotations. * [`PTPolygonCreate`](https://sdk.apryse.com/api/ios/Classes/PTPolygonCreate.html): Creates [polygon](https://sdk.apryse.com/api/ios/Classes/PTPolygon.html) annotations. * [`PTCloudCreate`](https://sdk.apryse.com/api/ios/Classes/PTCloudCreate.html): Creates [polygon](https://sdk.apryse.com/api/ios/Classes/PTPolygon.html) annotations with a cloud border effect. * [`PTAreaCreate`](https://sdk.apryse.com/api/ios/Classes/PTAreaCreate.html): Creates [polygon](https://sdk.apryse.com/api/ios/Classes/PTPolygon.html) annotations with area measurement information. * [`PTPerimeterCreate`](https://sdk.apryse.com/api/ios/Classes/PTPerimeterCreate.html): Creates [polyline](https://sdk.apryse.com/api/ios/Classes/PTPolyLine.html) annotations with perimeter measurement information. * [`PTFileAttachmentCreate`](https://sdk.apryse.com/api/ios/Classes/PTFileAttachmentCreate.html): Creates [file attachment](https://sdk.apryse.com/api/ios/Classes/PTFileAttachment.html) annotations. * [`PTImageStampCreate`](https://sdk.apryse.com/api/ios/Classes/PTImageStampCreate.html): Creates [rubber stamp](https://sdk.apryse.com/api/ios/Classes/PTRubberStamp.html) annotations. * [`PTTextMarkupCreate`](https://sdk.apryse.com/api/ios/Classes/PTTextMarkupCreate.html): The base class for all text markup creation tools. * [`PTTextHighlightCreate`](https://sdk.apryse.com/api/ios/Classes/PTTextHighlightCreate.html): Creates [text highlight](https://sdk.apryse.com/api/ios/Classes/PTHighlightAnnot.html) annotations. * [`PTTextSquigglyCreate`](https://sdk.apryse.com/api/ios/Classes/PTTextSquigglyCreate.html): Creates [text squiggly](https://sdk.apryse.com/api/ios/Classes/PTSquiggly.html) annotations. * [`PTTextStrikeoutCreate`](https://sdk.apryse.com/api/ios/Classes/PTTextStrikeoutCreate.html): Creates [text strikeout](https://sdk.apryse.com/api/ios/Classes/PTStrikeOut.html) annotations. * [`PTTextUnderlineCreate`](https://sdk.apryse.com/api/ios/Classes/PTTextUnderlineCreate.html): Creates [text underline](https://sdk.apryse.com/api/ios/Classes/PTUnderline.html) annotations. * [`PTTextRedactionCreate`](https://sdk.apryse.com/api/ios/Classes/PTTextRedactionCreate.html): Creates text [redaction](https://sdk.apryse.com/api/ios/Classes/PTRedactionAnnot.html) annotations. * [`PTTextSelectTool`](https://sdk.apryse.com/api/ios/Classes/PTTextSelectTool.html): Selects text on pages. --- # Agent Instructions This documentation is published with GitBook. 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