The Stamp tool is used to add "rubber stamp" comments on documents. For example, a text stamp can be used to indicate that a generated PDF is "DRAFT," "FOR REVIEW," and so on. Revu comes preloaded with some common stamps, which you can modify if desired or you can create your own.
Go to Markup > Stamp > Create Stamp. The Create Stamp dialog box appears.
Blend Mode: Defines the method by which the color in the stamp blends with the underlying PDF content.
Revu supports the standard PDF blend modes. Each is described below, as per the "PDF Blend Modes: Addendum" to the PDF Reference, fifth edition, version 1.6.
Normal: Selects the source color, ignoring the backdrop.
Multiply: Multiplies the backdrop and source color values. The result color is always at least as dark as either of the two constituent colors.
Screen: Multiplies the complements of the backdrop and the source color values, then complements the result. The result color is always at least as light as either of the two constituent colors.
Overlay: Multiplies or screens the colors, depending on the backdrop color. The colors overlay the backdrop while preserving its highlights and shadows. The backdrop color is not replaced but is mixed with the source color to reflect the lightness or darkness of the backdrop.
Darken (default): Selects the darker of the backdrop and source colors. The backdrop is replaced with the source where the source is darker; otherwise, it is left unchanged.
Lighten: Selects the lighter of the backdrop and source colors. The backdrop is replaced with the source where the source is lighter; otherwise, it is left unchanged.
Color Dodge: Brightens the backdrop color to reflect the source color. Painting with black produces no changes.
Color Burn: Darkens the backdrop color to reflect the source color. Painting with white produces no change.
Hard Light: Multiplies or screens the colors, depending on the source color. The effect is similar to shining a harsh spotlight on the backdrop.
Soft Light: Darkens or lightens the colors, depending on the source color value. The effect is similar to shining a diffused spotlight on the backdrop.
Difference: Subtracts the darker of the two constituent color. Painting with white inverts the backdrop color; painting with black produces no change.
Exclusion: Produces an effect similar to that of the Difference mode but lower in contrast. Painting with white inverts the backdrop color; painting with black produces no change.
Luminosity: Creates a color with the luminosity of the source color and the hue and saturation of the backdrop color. This produces an inverse effect to that of the Color mode.
Hue: Creates a color with the hue of the source color and the saturation and luminosity of the backdrop color.
Saturation: Creates a color with the saturation of the source color and the hue and luminosity of the backdrop color. Painting with this mode in an area of the backdrop that is a pure gray (no saturation) produces no change.
Color: Creates a color with the hue and saturation of the source color and the luminosity of the backdrop color. This preserves the gray levels of the backdrop and is useful for coloring monochrome images or tinting color images.
To open an existing PDF stamp in edit mode:
There are a few things that you will see in a stamp that you will not see when editing a regular PDF.
Use the Markup tools the same way that you would use them in any other PDF to create the content of the stamp.
Dynamic text can be added to the stamp. Dynamic text is automatically updated when the stamp is placed in a PDF. For example, a dynamic Date field would automatically update with the current date when the stamp is placed. To place dynamic text:
File and user information:
Date and time information:
Click the stamp icon on the document tab and select Stamp Properties.
The Stamp Properties dialog box appears.
The files are copied into the Stamps folder and will appear in the Stamps list. You can also manually copy files into the Stamps folder.
Stamps are saved as individual PDF files in folders on a local or network drive. Deleting the appropriate PDF file from that folder will effectively delete the stamp. Stamps can also be deleted from within Revu.
Before deleting a stamp, ensure that you have the necessary permissions to the folder in which it is saved. Also, stamps that are currently open for editing cannot be deleted.
To delete a stamp:
Creating a Custom Stamp