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Why is my cursor jumping?

 

Revu has a number of Snap options that allow you to more accurately place markups and measurements on a PDF. However, if you don't know that one of the options is enabled, your mouse cursor may appear to jump, move unexpectedly, or select the wrong point.

 

The buttons to enable and disable Snap options are in the Status bar at the very bottom of the Revu window. Each button is highlighted when it is active. (Press the F8 key to display the Status bar if it isn't currently displayed.)

 

 

There are six buttons in the Status bar: Grid, Snap, Content, Markup, Reuse and Sync. It is important to note that Grid, Reuse and Sync do not have snap functionality; however, they all relate to markup placement and are therefore important to discuss.

 

Grid: Displays grid points on the PDF page, but does not snap to them.

 

Snap: Cursor snaps to the nearest grid point, even when the grid is not displayed.

 

Content: Cursor snaps to the underlying content of the PDF. A small blue-filled square cursor will display when it is near a point that it will snap to. A square (without the blue fill) will display when the cursor is near an object that it will snap to.

 

For example, the image below shows the cursor when a Length measurement is snapping to a point:

 

 

Markup: Snaps to other markups in the PDF, just like Content snaps to PDF content. Also displays horizontal and vertical "construction lines" that allow you to snap to the horizontal or vertical location of points on other markups, even if they are not currently displayed.

 

The Markup snap is very useful when creating forms.

 

  • Snap to a point

  • Guidelines creating a Polygon

  • Guideline creating aligned Rectangles

 

Reuse: Enables the same tool to be used multiple times without having to reselect the button on the toolbar. This mode is helpful when adding the same markup onto the PDF multiple times.

 

Sync: Synchronizes the display of split views when viewing the PDF using the Split View modes.

 

Tips and Keyboard Shortcuts:

  • The Content snap only works with vector content in the PDF. For example, it will snap to lines and arcs in a PDF created from a CAD drawing. It will not snap to image content, like in a scanned PDF.
  • The Content snap is always enabled in the Measurement tools. Hold down the Ctrl key to disable the Content snap temporarily or uncheck the "Snap to Content" check box at the bottom of the Measurement tab to disable it permanently.
  • The snaps can be temporarily disabled by holding down the Ctrl key when creating a markup.
  • Hold down the Shift key when creating a Line or Length measurement to snap the line to 0, 45 or 90 degrees.
  • You can customize the size of the grid and which type of points to snap. Click Preferences on the Edit menu, then click Grid & Snap. Or press Ctrl+K and then click Grid & Snap.

 

Note:

The Markup button and construction lines were introduced in Revu 9. Previously, there was a single Content snap that controlled both Snap to Content and Markup.