How to make an image greyscale in InDesign?

[Weenana]

Hello guys,

Anyone have idea to make images grey scales in InDesign?

Before I always take my picture, go to Ps > Greyscale > Save as > import to InD.

Or if I save the entire pages as grey scales.....

But I only want certain pages in grey scales, not the all pages.

Thurs, edit one by one by one image in Ps took me a lot of time just to preview it the entire thing...

Also read about creating a layer on the image in InD, but, again creating one by one took me lots of steps...

Looking for shortcuts that can just turn the image grey scles in no time.

Thank you so much!

[rob day · Accepted solution]

The only way to get a true Grayscale mode is to do it in Photoshop.

You can neutralize an RGB image by placing it in a frame filled with black then selecting the image and setting its Blending Mode to Luminosity. For the images to be perfectly neutral set the document's Transparency Blending Space to RGB.

[Weenana]

Thank you!

Have tried it.

I have to create frame one by one on the picture then? :S

[rob day]

I have to create frame one by one on the picture then? :S

All images have a container frame even when you place the image directly on the page. The (white) direct select tool selects the image and the selection tool selects the parent frame. Object styles could be applied to both.

[Migintosh]

A Photoshop droplet would speed things up.

[hammer0909]

Rorohiko has a plugin called Color2Gray that allows you to do this directly in InDesign. Check it out here https://www.rorohiko.com/wordpress/indesign-downloads/color2gray/

[rob day]

Looking for shortcuts that can just turn the image grey scles in no time.

The blending mode trick can be scripted—the script could be assigned a key command.

If you are using OSX this AppleScript would work when the image's frame is selected (black selection tool)

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tell application "Adobe InDesign CC 2017"

    try

        set fill color of selection to swatch "Black" of active document

        set blend mode of blending settings of transparency settings of image 1 of selection to luminosity

    end try

end tell

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Or this version which would ask for an image to place and apply the blending to the placed image:

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tell application "Adobe InDesign CC 2017"

    set p to name of active page of active window as integer

    set f to (choose file with prompt "Please select a file to place") as alias

    set i to place f on page p of active document

    set fill color of parent of item 1 of i to swatch "Black" of active document

    set blend mode of blending settings of transparency settings of item 1 of i to luminosity

end tell

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