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

learn more… | top users | synonyms

101
votes
3answers
480k 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 ...
53
votes
4answers
228k 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
270 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 ...
17
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
20k 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 ...
27
votes
4answers
93k 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
61k 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 ...
18
votes
6answers
54k 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
39k 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
35k 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
589 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
957 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
1answer
165 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

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 ...
13
votes
2answers
34k 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
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 ...
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 ...
7
votes
3answers
9k 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
7k 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
937 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
8k 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
39k 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
238 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
493 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
93 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
3answers
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 ...
1
vote
1answer
414 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
8k 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
8k 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
661 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
223 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
0answers
49 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
213 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 ...