GIMP :: Images Transparency Intact In PNG Format
May 22, 2012
I'm having trouble getting GIMP 2 to save some of my images with their transparency intact in .png format.
I've already performed the process of adding alpha layers and then removing the area I want to be transparent and then I've exported several images which have successfully retained their transparency.
I have three images, no different from any of the other twnty or so, that when I export them, do not retain ther transparency and instead fill in the entire background with white.
I've done other images before and since these three adn can't figure out why they're giving me trouble.
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Apr 8, 2013
My Gimp version……2.6.8.
Until recently Gimp has either supported transparency of .png image files or automatically added an alpha channel to the image. This I don't know. I do a lot of rendering and have always been able to take a .png or convert any image type to a .png, create a path, and delete everything outside of the path and end up with a transparent background.
But something has changed where I must now manually add an alpha channel to a .png image in order to end up with a “transparent background”. what changed in Gimp that I can no longer just erase or delete a selected area of a png resulting in a transparent area?
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Mar 11, 2012
I need to put images on websites such as headers, buttons, icons, just text and so forth.
I have saved my work first as .xcf for later editing. Then I save my work as .png that I have created with a transparent background. However, when I go to put them on the websites I am building there is Always a white background. ??
Even when I upload them to Photobucket there is a white background. But when I make .png images in Inkscape they load fine to Photobucket with no white background but again, when I try to put the Inkscape .png images on my websites they too have white backgrounds.
Also, when I save files with a transparent background as .gif and upload them to Photobucket the transparent background is there but the images look just awful. They are no longer smooth around the edges & look like the pixels are sticking out all around the images.
Also, when I save files as .gif and upload them to my websites they too have a white background. ??
I've been using Dropbox to send images to my biz partner and both the .png and the .gif are showing up with white backgrounds in Dropbox as well.
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Nov 29, 2012
I like to repair books with missing pages. Often I can get digital images in tiff or PDF format, but they are often 'dirty', like the one attached. This one seems a good example of the sort of thing I would need to work on.
I need to reconstruct the image, which I think would mean:
i) getting an image that is complete and rectangular with a bleed out of in the same colour.
ii) remove blemishes like library marks, names etc.
iii) reconstruct the decayed text as sensitively as possible.
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Aug 20, 2011
For quite some time I've been trying to find the best way to remove a white background from images. I've checked out the sticky thread on this forum and as my image isn't of great quality and because it features quite a lot of white that won't apply.
Recently I found this tutorial which is supposed to work great (as seen in the comments). However, I think that because of a GIMP update that won't apply anymore somehow. I was hoping you guys might know what was causing it.
Everything works well until I get to step 7, where I have to select to Alpha. There it selects just the outlines, but my selection includes inner parts of the image, not just the background. And then after I invert and delete, the white that remains still has transparent parts that show up on the upper layer. So, am I doing something wrong with the Alpha to Selection, is that tutorial updated or is there a better way to remove the background from ie. a logo with just one background colour which isn't of great quality.
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Sep 13, 2012
We have a computer that using AutoCAD Architecture 2013 and Acrobat 9 Standard. When printing a large sheet (30"x42") with images in it to a PDF the images do not appear in the newly created PDF. However, if the same file is printed to fit an 11x17 the images display correctly. Any thoughts as to why the large sheet size is not printing properly?
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Jun 20, 2012
I've downloaded a photo from the net and then opened with photoshop, its an image with a white background so using magic wand tool I selected the white areas and deleted them. After this I went to save for web and have saved as PNG and GIF format with the transparency box checked but then when I open the image on my site the damn white background is still there.
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Apr 14, 2005
I have a file that needs to be in vector format, however all of the white colors need to be transparent. The problem is that you cannot simply "erase" colors in vector fonts and the like, and there is not "transparent fill" option to my knowledge. Need I create some sort of adjustment layer and paint the transparent portions in?
Am I missing something incredibly simple here? I'm sure that I am.
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Dec 12, 2011
I have a problem with Corel Draw x4 .eps exporting.When i exported graphic elements what contains gradient or transparency effect in eps format these elements appears broken or destroyed. how can i export this graphics correctly with CDRx4.
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Jan 25, 2014
Sometimes I make a fresh transparency blank of gimp. Then I import a jpg. I expect the transparency to appear as I erase. Sometimes it erases and there is white; sometimes I erase and it's transparent. ? Isn't it supposed to be transparent?
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Jan 3, 2013
ESTK for AI CS6 is already known to create problems (e.g. URL....).It’s possible that, in dialogs created with ScriptUI, AI CS6 also fails to display images with transparency properly. On my (Mac) system at least, such images appear with an aliased edge.
If this is true it’s doubly unfortunate, since with CS6 Adobe chose to make AI’s background interface colour adjustable—which makes interface images with transparency something of a requirement.
One workaround, which sadly negates the whole business of variable interface background colour, is to create dialog images with a background colour instead of transparency, and then force the dialog to display with the same background colour. For this technique we’re indebted again to Peter Kahrel’s invaluable ScriptUI for Dummies (URL...). Page 69 of that publication shows how to do this—for example:
win.graphics.backgroundColor = win.graphics.newBrush(win.graphics.BrushType.SOLID_COLOR,[0.5,0.5,0.7 5]);
The process is, to say the least, quirky: and, as Peter mentions, poorly documented by Adobe. But I hope it may be useful to others trying to use ScriptUI. The more I see of AI CS6 the more I like CS4! I develop scripts for CS6 using ESTK for CS4?
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Oct 4, 2012
The edges of this fabric are semi transparent. The grey colour to the area where the arrow points is caused by the photo's original background. Now I'm wondering is it possible to recreate the transparency so that the colours from a new background will show through. I've tried colour to alpha but that makes most of the image transparent.
The rest of the image is mostly black and greys with a splash of red. I would post the entire image but it's copyrighted - DA stock model - so I don't want to break the rules.
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Mar 26, 2012
How is it possible, to take the brightness of every pixel from the background, and transfer that to the upper layers transparency. (The upper layer is for example all blue). As I said before, I know that this works. I tried everything out and asked Google a lot of times, but I just can´t figure it out.
What I can remember doing there was just take the blue layer and transfer it to another picture. I was wondering because i didn´t do anything special.
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Jun 1, 2012
[URL]
In each program I have used from Corel Photo-Paint 11, Paint Shop Pro 5 and 7, to Gimp 2.6.11 the end result is exactly the same.
I select the background Invert the selection to pull it out of the original Paste the remaining image with transparent background or make an alpha channel The background needing to be transparent stays transparent.
The moment I save the image as a PNG, close the image, reopen it, check if the Mask/ Alpha channel data remains in tact, and it does, the transparency is completely removed and the background turns to white. This happens on every one of the programs and I am just at my wits end.
There must be something, an order of operations, a color scheme, a presetup step that -everyone- knows but me, that is preventing this from having a transparent background.
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Jun 25, 2012
I've to select an area ant turn the background transparent. Previously this was simple: select foreground, invert so background selected, toggle the transparency to 0% and hey presto, transparent background. Now when I do that it goes white.
I have tried using transparency - add alpha channel, and nothing happens: the menu stays there. Is that a glitch in y version of Gimp? and how can I now isolate the background and turn int transparent?
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Jul 20, 2012
I'm relatively new to photoshop and I have been searching for a simple answer to this question.
I'm working with images scanned from 35mm transparency film and black and white negatives. The average size when opened in photoshop is .88inches width x 1.297inches height at 2000 pixels/inch. I'll be putting these images on the web as well as printing some.
My question is:
Can I work with them as-is in photoshop and change the size later (for web, printing etc) or is there some general size I should change them too prior to working on them in photoshop CS5 extended?
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Jun 14, 2012
I'm drawing some illustrations and want to fill overlapping objects with a paper texture. I have done this using the Transparency window and placing a paper texture image over each object. The problem is that where the objects overlap to create the whole picture, they are quite transparent and so you get the effect of layers of tissue paper. I want each object to look completely opaque, but despite opacity being set to 100% on each object, they don't.
I've tried filling the objects with lighter / darker paper texture images and tweaking the Transparency settings to Darker / Ligher / Soft or hard light, etc.
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Oct 28, 2006
i have a nikon coolscan 4000EED scanner with a batch adaptor. When I save as NEF files I cant open them in photoshop. I have tried convetrting them to DNG files with the Adobe DNG converter but this doesnt work either.
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Aug 31, 2007
I have a little dilemma at the moment. I've spent a good half an hour or more using the Lasso tools to select a bunch area's while in a very high resolution so I can use a filter on certain areas.
Well that filter is bugged for some reason. And I need to restart Photoshop. But when I save it as a PSD. And open it again. My selection is gone and I'm left with my unselected image.
So, Does anyone know how to save your project, while still keeping the selection lines intact?
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May 16, 2009
How do I get an ID CS4 layered document into PS CS4 with the layers intact for further editing there?
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Aug 1, 2011
is it possible to bring in a PDF and keep the layers intact?
I have received some artwork with a cutter guide on and with over 1,700 entities all on the same layer, some of which are the same colour as the cutter guide.
It would be a royal pain trying to select the cutter guide line by line!
I am using XDP6
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Jun 4, 2013
I have a client who insists on receiving final files as PDFs saved as Illustrator Default with Preserve Illustrator Editing Capabilities ticked. This wasn't an issue until I upgraded to cs6. In cs6 I'm saving the native file as cs5, and then saving as PDF with the following options:
The client is able to open the PDF in cs5 but the layers are all flattened into a single layer. Is there way to Preserve Illustrator Editing Capabilities for any version other than cs6?
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Dec 7, 2011
making a alpha channel transparency; Funny thing is. I made it work once a few days ago. I went to bed and forgot to write down how i did it (Tried everything, almost)
In the link right here [URL] n i have 4 files; Q3a_arrow_gimp_ver4.tga (TGA that works as i want it, you'll notice ALL the alpha channels have a black layer channel in the channels tab, how do i recreate that?) Q3a_arrow_methodtry.tga (tried to recreate with THIS tutorial [URL] with no success P.S. i tried loooads of tutorials but this recreation seems rather close to the working .TGA i need) Q3a_arrow.ai (sourcematerial all vector from Adobe Illustrator) Q3a_arrow.png (picture with transparency intact if needed for comparison)
So; Now... What i did to make the working picture was making a .PNG - drag it into gimp.. I recall doing some Alpha and or masking or selection thing with it, then rendered it for .TGA since Illustrator does not support the kind of .TGA i needed. Worked flawlessly in the engine where i use a function called alphafunc GE128 (blend with black as invisible layer and white as solid)
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Jan 28, 2014
I loaded one PNG pic.
I added an alpha channel to make it a transparency.
I used the select by color tool.
I clicked white & removed.
I saved. I switched to eraser - but it is acting like I'm trying to erase something off the transparency layer and won't erase anything.
I have the correct layer selected in the layers window.
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Sep 4, 2013
I'm sure 'variable transparency' is not the right way of putting this.
I have an image which has some text in white. However because of the aliasing the text is not 100% white against the background (black). Rather; the edges are shades of white.
I want to convert the image so that the text is transparent. If the text was 100% white it would be simple. Colors.. Colors To Alpha. However that doesn't work as it doesn't deal with the shades of white around the edges of the text.
I want the shades of white to be transparent with the same degree of opacity as they white. So the white in the image is 100% transparent and a pixel which is say light grey to be 90% transparent. (The end image is going to be used as a webkit mask; showing the background behind the masked element).
I don't know where to start with this. I know PNGs support 8 bit transparency so it should in theory be possible.
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Dec 21, 2013
I have a PNG of sprites similar to this:
[URL].........
I want to change the background color to a transparent one. I've tried using Color to Alpha but that makes the sprites themselves partially transparent which is not what I want. My second attempt was to use the fuzzy select tool to select all of the white bits and remove them. This doesn't really work either because on a non white background each of the sprites has a few whitish pixels around it's edge. So what I really want is a combination of the two, i.e. all of the white pixels are made completely transparent, and the whitish pixels on the edge of each sprite are made partially transparent, but the sprites themselves remain opaque.
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Nov 22, 2011
*) Open the image "Ok.png" - you'll see there's a small green triangle on the right.
*) Mark and delete a bit of the triangle.
*) Save the image (I checked the 3rd (gamma), the 5th (resolution) and the 6th (time) checkbox).
When I now open the saved image in a different viewer (I use the picasa viewer because this viewer shows the transparent areas nicely), the image is still transparent.
*) Delete the rest of the small green triangle on the right.
*) Save the image.
When you now open it in a different viewer, then suddenly the background isn't transparent anymore. (It's then like the 2nd attached pic - Fail.png)
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May 7, 2012
I need to set transparency on a couple of layers, how do I do that in GIMP 2.8?
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Nov 5, 2012
Is there an easy way to flatten without losing transparency?
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Mar 16, 2013
Take any image. Enlarge the canvas to create an area of transparency. Find out you can't draw on it. Click and unclick the buttons by "Lock:" in the layers bar. Get really really frustrated.
What do I do to fix this (before I give up and uninstall Gimp)?
(to pre-empt the innevitable question - I can't draw on an area of transparency. Even if I copy a section of picture and paste into a new layer and move that to cover the transparent area, it isn't visible. Its like there's an area of completely opaque transparency covering everything else.)
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Mar 5, 2011
Are there different formats of transparency in a PNG image?
I've made a PNG image with transparency that looks fine (I see gray checkerboard through the image) when I close it and reopen it in GIMP. But in the Windows 7 picture viewer, all of the transparency looks opaque white. It is also opaque white when I load it into my Android app for use in OpenGL.
I've made PNG images with Inkscape, and they do not have this problem. The transparency looks correct in the Windows picture viewer, and in my Android app.
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