Questions about how to achieve transparency, or adjust the level of opacity, in any graphic manipulation software.

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100
votes
3answers
455k views

Making the background of an image transparent in Gimp

I have some jpg images and I need for each of them to have a transparent background. I have GIMP as a graphic tool. I need to put them in a web page and I need to see just the main element and have ...
51
votes
4answers
210k views

Replacing whiteness with transparency in CS6

I want to replace the whiteness in pixels with transparency in the same way as described in this question - i.e. for lighter pixels to be made proportionally as transparent. All solutions found via ...
0
votes
2answers
235 views

Can image transparency be calculated automatically from multiple non-transparent samples?

I'm wondering if there is a way to automatically calculate transparent image from set of non-transparent ones. No manual work with individual pixels or manual setting of opacities. Many times I need ...
15
votes
2answers
13k views

Why does my transparent PNG not look good?

I want to convert a JPG to transparent and using GIMP I added alpha layers and transparency same way I make a GIF transparent I converted it to PNG but it doesn't display well when I load it on my ...
7
votes
2answers
19k views

How can I remove white pixels around circles when exporting this to gif?

I took the loaders from here: http://xooplate.com/template/details/10888-5-animated-loading-spinner-action-icons-psd Than I exported them easily, with the help of the included action to a gif. But I ...
25
votes
4answers
90k views

Add transparency to an existing PNG

I'd like to use this image on a web site. What I need to do is change the background from black to transparent, so I can use the arrow on my site maintaining the page background. I used Gimp to ...
14
votes
5answers
59k views

Photoshop CS5: Setting a black background to transparent

I have an image of smoke over a black background. If I set the blending mode of this layer to screen, the image's background is perfectly edited out, however if there isn't another layer below this, ...
6
votes
1answer
11k views

Using GIMP, can you “erase” a color?

I'm presently working on an iOS application and I am attempting to reverse engineer their standard alert dialog window. I have managed to figure out what the alpha value on the background it uses is ...
5
votes
1answer
1k views

How to punch through all the layers in Adobe Illustrator?

So I have this image as vector and a grunge image as vector: I can easily mask the grunge part from the image in Photoshop: But when I try to do this on Illustrator with pathfinder always get ...
16
votes
6answers
52k views

Copy & Pasting from Photoshop to Illustrator loses transparency

I often run into this issue. I'm creating a file in Photoshop with masked layers etc. I want to make the final output available for some mock-ups in Illustrator, so I rasterize the layers and marquee ...
6
votes
1answer
1k views

GIF with transparency output not as expected in GIMP

I have been trying to create a GIF using a sequence of PNGs within GIMP An example PNG from the sequence shows the correct transparency I want to be shown in the GIF, But when I process the PNG ...
3
votes
2answers
37k views

Save Illustrator as PDF with transparent background

Is there a way to export my artwork as PDF so that it has a transparent background? Something like exporting objects only... whenever I try to save my .ai as pdf, it always comes with a full white ...
0
votes
1answer
10k views

How do I make a color background transparent? [duplicate]

How I can make color transparent in Photoshop? For example, I have picture of smoke, and I want to make background color (which is black) transparent. How?
6
votes
5answers
33k views

Replace black background with a transparent background

How can I add transparent background on this image instead of black background, but I also would like to keep the partial transparency effect on some of the particles and particles borders. Could ...
3
votes
1answer
9k views

Photoshop - turn white transparent, specifically preserving shadows - new issue

I have read articles all over the internet today. While some questions and answers are similar to my issue, none precisely cover my problem. I am currently doing CAD work for a website where my ...
2
votes
3answers
572 views

How to extract the black and white components of an image to superimpose it over colored backgrounds

Say I want to create a glowing button for a website. I would like to have the possibility to dynamically change the color of that button by changing the color of it's background. For this I need to ...
2
votes
2answers
924 views

How do I handle thumbnails of white-on-transparent pngs in Bridge?

When handling multiple white-on-transparent png images, I am hindered by the fact that the thumbnails of these images are all-white. Both Adobe Bridge CS6 and Windows Explorer suffer the same problem, ...
1
vote
3answers
3k views

How can I make a the lighter colors of a greyscale image transparent?

I would like to achieve in Photoshop this type of transparency effect (higher transparency values on the brighter areas of the image): How can I do this?
0
votes
2answers
4k views

How to change white background of an gif image to transparent

I have an gif Image like example and I want to make its background transparent from white. I am an learner of Photoshop so please describe steps to do it. Currently I was trying to edit each and ...
12
votes
2answers
32k views

Gimp - Using an image as the transparency layer of another image

I have two images (For the sake of simplicity, Image1 and Image2). I want to use Image2 as a transparency for Image1. How can I do that? Assume I've done little more with Gimp than play with some ...
14
votes
1answer
4k views

Why does this PNG image on twitter look different when clicked?

This morning on twitter there was a tweet with the text "click on this picture". When picture is clicked, it's opened in wider viewer, but looks completely different. I tried to analyze this picture ...
14
votes
9answers
6k views

Transparency to unpremultiplied RGB + Alpha

I have a transparent layer in Photoshop CS5 (so internally, it's most probably stored as unpremultiplied RGB component plus an alpha component per pixel). Now I want to transform this to an opaque ...
7
votes
3answers
8k views

Batch replacing color with transparency

I have a very large number of PNG images (too many to practically do one at a time) with a bright pink background and would like to replace the background color with transparency. If this is not ...
6
votes
3answers
5k views

Formula for finding out the result of a color after applying x% opacity to it?

I have 2 colors #a1a2a4 black (#000000) white (#ffffff) Now I need to know how much opacity (in a percent) must I apply to the second color (black) against a background of the third color (white) ...
4
votes
1answer
6k views

Making parts of Illustrator logo transparent - rather than faking it with the background color

So a designer has given me some logos (for the web) which are white on a blue background. She has, however, added blue paths to the shape to make it match the background. I would prefer to change ...
2
votes
3answers
798 views

Changing image color

I am by no means a Graphic Designer but try. I have an image I got from iconarchive and am trying to set the color to red (#840a0c) and setting transparent where there is white. I am using GIMP for ...
1
vote
2answers
7k views

Spot Color Transparency and Screens in Illustrator

(Illustrator CS5) I have a design that will be printed on a line printer. Possible are up to 7 colors, or a 4-color process with 3 line colors. I'm currently sticking to PMS only (only 5 PMS colors ...
5
votes
2answers
37k views

How to save a 32 bit png with alpha channel (transparency) in Photoshop?

I want to use an image as an application launcher icon for my android application. The android guidelines specify an image for the launcher icon must be a 32 bit PNG image. Please explain the steps ...
4
votes
2answers
230 views

How do I avoid selection box shrinkage when working with transparent layers?

TLDR: When I use the marquee tool to select a box around layer and then move it with the move tool, the selection box shrinks to surround the populated region of the layer. Is there a way to keep the ...
2
votes
3answers
446 views

Turning pixel brightness into transparency in single-hue image

I'm looking for a way to take single-hue images and turn their brightness into opacity in Photoshop. At the simplest, say you have a flat green circle on a white background (as an already saved ...
1
vote
2answers
87 views

Getting Transparent Images from Photoshop into Illustrator

Simply, I am trying to bring an image made in Photoshop into Illustrator for the purposes of creating a vector image for a t-shirt design. The image has only one layer and contains transparencies. I ...
1
vote
1answer
399 views

Black-white and grayscale to alpha conversion for images

Is there an utility for converting all black-white and grayscale images from certain folder to the same images with adjusted alpha channel? For example, for pixel (r:50, g:50, b:50, a:0) I would like ...
1
vote
1answer
7k views

“Replace” image (gradient) in image with alpha

Consider the following graphic: Note that the first image's background is transparent, and that the blue background in the second and third images is a subtle gradient - not solid color. ...
1
vote
1answer
7k views

Adobe Photoshop - How to turn text into a “hole” in a layer, so I will see the background through it.

Okay, this should be super easy to do but I just can't find the way. I have a background image with a solid colour layer on top of it, and I would like to add text on top of everything in such a way ...
0
votes
1answer
510 views

Printing: Opacity color or transparency in Abode Illustrator

I have a client who needs a flyer designed and has a printing restriction of one color, in order to keep cost low. To make the design more interesting and appealing I have used the same color blue in ...
0
votes
1answer
199 views

How do I turn gray and white pixels on black lineart into a transparent gradiant?

I'm hoping my question is a simple one, as I'm strapped for time. To put it simply, the lineart looks great from afar, and I plan on adding color to it in a layer under. But unfortunately, due to a ...
0
votes
1answer
140 views

Combining and Layering Transparent Shapes in Illustrator

Sorry if my title is a big vague. I'm fairly new to Illustrator and and still trying to figure out how things work. I have a few paths that I'm looking to layer, one on top of the other. From bottom ...
0
votes
2answers
4k views

PDF has white background when exported from Illustrator

I'm saving an Illustrator CS6 file as a PDF. The file has a transparent background, however when exported as a PDF and dropped into InDesign the file has a white background. I've tried saving the ...
0
votes
0answers
48 views

Blur a transparent image [duplicate]

What I'm trying to accomplish is an image that is transparent and will blur what is behind it. I have tried to have a transparent background and then add a semi transparent white layer and blur that ...
-2
votes
3answers
209 views

Why is this blurred images not working as a background?

How can I get the picture in the background and add a blur to it so it looks like the example ones? I have tested blur in one of my designs, and it's looks bad x) I wonder if it's the color of the ...