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Making masks in InDesign

From: InDesign CS4 Beyond the Basics

Video: Making masks in InDesign

InDesign's Effects panel has two very obscure, but powerful checkboxes called Isolate blending and Knock Out Group and most people just ignore these, but it turns out that you can use them for some pretty cool effects, but the key to these checkboxes is that they only apply to groups. So we need a group. Let's jump to page five of this document by pressing Command+J or Ctrl+J on Windows, then five and Enter and I can see that I have got a couple of different groups here of images. I am going to grab this image on top and put it on top of that one, and I will zoom in so we can see these more clearly.

Making masks in InDesign

InDesign's Effects panel has two very obscure, but powerful checkboxes called Isolate blending and Knock Out Group and most people just ignore these, but it turns out that you can use them for some pretty cool effects, but the key to these checkboxes is that they only apply to groups. So we need a group. Let's jump to page five of this document by pressing Command+J or Ctrl+J on Windows, then five and Enter and I can see that I have got a couple of different groups here of images. I am going to grab this image on top and put it on top of that one, and I will zoom in so we can see these more clearly.

Now this is one group, this is another group, evidenced by the dashed border around it. In this case, I am going to select the top image here and change its blending mode to Overlay and that's a pretty dramatic effect. We can see that it affects both the Cacao Beans image behind it, also this circle pattern behind that. If we select both of these groups and group those together into a single group, now we could use the Isolate Blending feature because again Isolate Blending only works on groups of objects. I have got two different groups grouped together. I turn on Isolate Blending and we can see that it's dramatically different now.

What happened? Well, InDesign isolated the blending of that Overlay blend mode; it isolated that to only other objects inside that group. So that blend mode, that Overlay blend mode, now does not affect any other objects on the page beneath that group, like I can't see those circle patterns anymore. So Isolate Blending in some ways acts as a mask for your blending modes. It masks out your blending modes, so you only see those within the context of your group. Now let's take a look at Knock Out Group. I am going to turn off Isolate Blending, deselect that with Command+ Shift+G and I am going to move this image off to the side because I am just going to focus on this image right now. What I would like to do is to create a mask, a mask that lets me actually poke a hole right through that image. For example, I will drag out a textframe here and I am going to type Bliss. It's the name of our chocolate company here.

I will make that larger with keyboard shortcuts, I will just change this to bold, condensed, make that little bit tighter with my kerning. Option+Left Arrow will tighten up the kerning. Now I would like to make it even a little bit bigger than it is, so I am going to press Command+Option+C, which scales the textframe so that it's just around the text itself. That's just a fast way to let me scale this larger. I shrink the frame to fit the text and then Command+Shift+drag on one of these corners to make it as big as I want it to be.

Here we go. So I would like this word to be a mask for the image behind it. I want to poke a hole right through that image in the form of this word, so how do I do it? It's strange, follow along here, it's a weird technique. I select the textframe, I set its Opacity to zero in the Effects panel all right, which makes it disappear, it has an Opacity of zero, but it's still there. So if select that textframe and the image behind it or in this case, this whole group of objects behind it and then group them, Object > Group. Now I can do this weird technique with Knock Out Group. Knock Out Group means take that object that has the effect applied to it, the transparency of zero percent, and apply that to the group itself. So I have turned that into a mask. I can actually see right through the text here.

I can even move this, this is still editable objects. So for example, I will click on the Select Content button in the Control panel and I can drag that middle point, the center point of that textframe around, and as I move it, you can actually see that I can keep seeing right through it. It's actually poked a hole right through the group behind it because that's a whole group with Knock Out Group turned on. Okay I admit it. These checkboxes do really weird things, but this masking feature based on this Knock Out Group checkbox is so cool that it's really worth trying it out a few times.

Speaking of masks and cool effects, we are going to look at even cooler stuff in the next movie when we talk about integrating InDesign in Illustrator.

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This video is part of

Image for InDesign CS4 Beyond the Basics
InDesign CS4 Beyond the Basics

90 video lessons · 24578 viewers

David Blatner
Author

 
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  1. 2m 11s
    1. Welcome
      1m 3s
    2. Using the exercise files
      1m 8s
  2. 25m 16s
    1. Reviewing Control panel shortcuts
      8m 34s
    2. Managing panels
      6m 14s
    3. Letting InDesign do the math
      2m 52s
    4. Using Selection tool clicks
      1m 39s
    5. Using Quick Apply shortcuts
      3m 2s
    6. Setting up context shortcuts
      2m 55s
  3. 23m 51s
    1. Using column guides
      3m 42s
    2. Formatting and positioning guides
      5m 15s
    3. Setting first baseline options
      5m 30s
    4. Using the Document grid
      3m 13s
    5. Setting bleeds
      3m 3s
    6. Using slugs
      3m 8s
  4. 48m 2s
    1. Shuffling pages (or not)
      2m 47s
    2. Scaling objects to a specific size
      2m 32s
    3. Aligning objects to a page
      4m 41s
    4. Using advanced libraries
      4m 5s
    5. Using advanced anchored objects
      11m 21s
    6. Setting non-printing objects
      3m 10s
    7. Creating notes
      5m 23s
    8. Using Data Merge
      10m 41s
    9. Creating templates
      3m 22s
  5. 39m 32s
    1. Creating polygons and starbursts
      2m 35s
    2. Setting custom stroke styles
      5m 15s
    3. Using advanced effects
      8m 46s
    4. Making masks in InDesign
      4m 10s
    5. Integrating InDesign and Illustrator
      4m 59s
    6. Setting compound paths
      5m 4s
    7. Using advanced clipping paths
      6m 6s
    8. Using advanced image transparency
      2m 37s
  6. 55m 26s
    1. Using advanced text formatting
      5m 37s
    2. Using other languages
      4m 22s
    3. Setting advanced paragraph numbering
      3m 12s
    4. Using GREP to find/change
      6m 54s
    5. Managing glyphs
      5m 6s
    6. Finding and changing glyphs
      2m 39s
    7. Adding footnotes
      7m 57s
    8. Creating outlines
      3m 39s
    9. Setting conditional text
      9m 16s
    10. Creating cross-references
      6m 44s
  7. 33m 3s
    1. Advanced text importing
      7m 49s
    2. Using Apply Next Style
      5m 4s
    3. Advanced text styling
      6m 9s
    4. Setting load styles
      2m 58s
    5. Linking to text files on disk
      4m 1s
    6. Understanding GREP styles
      7m 2s
  8. 1h 4m
    1. Building a multi-document book
      4m 42s
    2. Setting page numbering across books
      7m 53s
    3. Setting chapter numbering
      6m 7s
    4. Using the Section Marker feature
      6m 53s
    5. Creating "Continued On..." numbers
      4m 44s
    6. Synchronizing documents in a book
      5m 41s
    7. Creating a table of contents
      11m 24s
    8. Indexing documents
      7m 24s
    9. Generating an index
      6m 47s
    10. Printing or exporting a book
      3m 10s
  9. 46m 4s
    1. Creating hyperlinks
      12m 53s
    2. Setting bookmarks
      6m 7s
    3. Creating buttons
      11m 16s
    4. Making movies
      8m 24s
    5. Creating sounds
      4m 51s
    6. Setting page transitions
      2m 33s
  10. 25m 59s
    1. Setting up swatch and style defaults
      3m 24s
    2. Using mixed ink colors
      6m 16s
    3. Working with duotones
      4m 23s
    4. Overprinting
      2m 10s
    5. Ink aliasing
      4m 50s
    6. Using the Kuler panel
      4m 56s
  11. 50m 27s
    1. Creating the transparency blend space
      4m 6s
    2. Understanding InDesign color settings
      9m 8s
    3. Assign Profile and Convert to Profile
      3m 26s
    4. Working with RGB images
      7m 54s
    5. Working with CMYK images
      6m 28s
    6. Soft-proofing
      5m 18s
    7. Managing color at print time
      7m 25s
    8. Managing color in a PDF export
      6m 42s
  12. 42m 1s
    1. Embedding preflight profiles
      5m 1s
    2. Using the Transparency Flattener preview
      3m 23s
    3. Reviewing Transparency Flattener settings
      6m 30s
    4. Setting print presets
      3m 35s
    5. Setting PDF presets
      3m 21s
    6. Exporting to XHTML
      7m 42s
    7. Exporting to SWF
      6m 45s
    8. Exporting to XFL
      5m 44s
  13. 25m 58s
    1. Understanding XML and InDesign
      6m 51s
    2. Structuring InDesign content
      4m 17s
    3. Importing XML
      6m 57s
    4. Exporting to XML
      7m 53s
  14. 34s
    1. Goodbye
      34s

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