2
votes
1answer
22 views

PNG/BMP images become blurred on zoom

I recently installed a Debian Jessie desktop and when opening PNG/BMP images it all becomes blurred on zoom (in or out). With the image at 100%, everything looks sharp as expected. This happens both ...
1
vote
0answers
419 views

Exporting high quality PNG from LibreOffice Draw

I need to generate a PNG file of an image composed in LibreOffice Draw. When I export to PNG directly, the quality is almost perfect, but it's just slightly blurry. However, when I export directly ...
5
votes
4answers
1k views

How to open huge PNG image [duplicate]

I have a really big PNG image, it's ~11GB. Is there any way to open it? I would just like to view it without too many problems. I tried Photoshop CS6 and it's too big even for this kind of modern ...
0
votes
0answers
408 views

.png file won't open in terminal

for some reason this .png image won't open in my terminal. i keep getting these responses: lkthomas@unix12:~/private$ eog snippet.png Cannot open display: Run 'eog --help' to see a full list of ...
0
votes
1answer
92 views

Turn monotone background in transparent

On the internet, you usually get images, that originally were PNGs with aplha chanel and were pasted on white background. Is there some way to substract the white from the zones, where the ...
0
votes
1answer
139 views

Batch image replace 2 colors

I know there is already such question but it didn't helped me. I have a lot of image files, where I want to change purple RGB(255, 0, 255) to transparent (it is png). Is there any app which could do ...
1
vote
1answer
40 views

Postscript to png conversion loss

When converting Postscript files to PNG, is there any loss of fidelity in the converted files? The postscript files are scanned at 1200DPI. If there is such loss, how can it be kept minimum? I'm ...
1
vote
1answer
85 views

Most space-efficient format for image with large dimensions but few colors?

Recently I have had to scale up the dimensions of a gif image by a factor of 2, this resulted in an increase of the file size by about 8 times. While this is not a complete surprise, I can't help but ...
0
votes
2answers
101 views

Identify specific PNG format

How can I tell, ideally with an Imagemagick identify command, whether a particular PNG is PNG32, PNG24 or PNG8? The %z or %[depth] gives the sample depth (not the pixel depth), which is always 8 or ...
3
votes
3answers
3k views

Convert image to uncompressed PNG from the command-line

I have a compressed PNG image compressed.png. I can convert it to an uncompressed PNG decompressed.png using GIMP (saving as PNG and setting compression level to 0). How can this be done on the ...
2
votes
2answers
370 views

PNGs with Black Backgrounds

Why is it that when I copy/paste PNG files with a transparent background into photoshop that they show up with a black background, whereas if I save them, then open they're transparent? I find it ...
3
votes
2answers
402 views

Windows 7 doesn't show image size for all images

On Windows 7's new file layout in Explorer. Some PNGs will show the size whereas others won't. I've tried rebooting and clearing the cache, but it doesn't work. Also, all of these images were saved ...
4
votes
1answer
10k views

Is there any quality difference between PNG vs BMP image formats?

I have just learned that PNG is a lossless image format while BMP can be both uncompressed or lossless format. Should there be a quality difference between these two? If not, does it mean that other ...
0
votes
1answer
792 views

How to convert a photo without losing quality?

I have to convert a bmp into another standard format, without losing quality. To which format shall I convert it to?
3
votes
1answer
888 views

What is the best way to create a single PNG image containing multiple PNGs of the same size?

What is the best way to create a single PNG image that contains multiple PNGs of the same size, such as 32x32 and 64x64? I have a lot of images that I need to include in a single image so I can load ...
19
votes
4answers
3k views

Is it possible to store arbitrary data in an image file?

Is it possible to store arbitrary data such as documents or a program in the form of an image file, such as a PNG image? My concern is that someone could encode data for use by malware into an image ...
5
votes
2answers
3k views

Convert many images to one PDF

How can I convert about 100 PNGs to one PDF on a Mac? I'm open to using the command line if it helps. I have tried using iPhoto, but it quits, not sure why. Saving from Preview doesn't quite do what ...
0
votes
2answers
4k views

Can I export a PNG image from Word? [duplicate]

Possible Duplicate: Copy Image Out Of Microsoft Word Someone sent me a doc file with a picture in it. Probably it is a png. I want to save the picture in order to paste it to other ...
0
votes
2answers
67 views

How do I apply a border on a picture from another picture [closed]

I want to add the border on this picture: to this picture: How do I accomplish this?
6
votes
1answer
2k views

Is it possible to make a .png (or other) image that does NOT have rectangular dimensions?

This might be a dumb question, but is it possible to make a .png file that isn't square? If so, how can one do this in Gimp? Ideally I'd like one in the shape of an X.
0
votes
2answers
908 views

How to remove a set of pixel columns from an image, using GIMP?

To clarify, say I have an image that is 100px wide and 50px high and I want to make it 50px x 50px, by removing columns from the MIDDLE of the image. i.e. I want to keep the left side of the image, ...
1
vote
4answers
513 views

How do I rescale large images?

How do I reduce the dimensions of large .png images? I've tried GIMP, Paint.NET, and IrfanView, and they work well for smaller images but won't even open larger ones.
2
votes
2answers
713 views

What meta-information is contained in an image file?

I'm wondering what information is contained in an image file like JPEG or PNG. I know that most of them contain a metadata file, but anything else other than that? Anything relates to the license ...
6
votes
2answers
235 views

Mass recoloring of PNGs from command line

Similar to the mass rescaling command this site taught me here, is there a command-line trick for mass recoloring? To make it specific, suppose I have a bunch of images with RGB and alpha values: ...
2
votes
4answers
8k views

Get pixel dimensions of a PNG on my Mac?

I have a random .PNG file on my Mac. Actually I have about a hundred of them. What is the easiest way to get the pixel dimensions? (I.e, 100 pixels wide and 50 high, or whatever).
2
votes
2answers
1k views

Convert compressed PNG-8 back to PNG-24

I have a PNG-8 image with transparency, which, due to this problem, I cannot edit in Photoshop (CS5). Is there a tool that would convert PNG-8 back to PNG-24, preserving transparency layer, so that ...
2
votes
1answer
3k views

Convert .ai to .png?

I just downloaded a free vector graphics set which contained UI elements and icons. The button graphics have some text on them. It were, however, .ai files which are not familiar to me. Obviously, I ...
2
votes
2answers
5k views

How to create a semi-transparent image

I need to create a semi transparent PNG image. I dont have Photoshop, so how do I make it using gimp?
10
votes
3answers
12k views

How to convert a multi-page PDF file to PNG files, with one PNG file per page of the PDF document (Windows)

Is there a software that could convert a multi-page PDF file to PNG files, and could automatically save one PNG file per page of the PDF document (for Windows 7)? I have tried a few virtual printer ...
1
vote
3answers
4k views

Creating blurred PNG image to lay over text link

I have a website where I want the text links in the navigation to be blurred. When the visitor then hover over the text link it becomes clear again. My idea is to make some kind of blurred image in ...
2
votes
5answers
349 views

Mass rescaling of PNGs

I have a bunch of PNG files that I want to rescale. Oversimplifying a little, let's say I have files named: apple@2x.png orange@2x.png pear@2x.png and so on, and I want to make: apple.png ...
1
vote
2answers
337 views

Why would PNG format images be stopped by a mail client?

I tried to send someone an email with a PNG format image attachment but it was stopped by their email filtering software (messagelabs). They said I could send them the image in a JPG or ZIP format ...
4
votes
2answers
2k views

Pdfcreator print file to multiple images (.png)

I am using pdfcreator. It installs a virtual windows printer that saves the file being printed into the desired format. I want to save my printed documents as multiple image files. (.png). I ...
0
votes
2answers
6k views

How to change the colour of a png image in any adobe software

I have a logo that is a process color and I need to change it to a pantone colour. The only way I could change the colour was if I live traced it but I lost some detail. So I was wondering if there is ...
1
vote
1answer
334 views

Force the .png extension on Mac Screenshots

It's very easy to take a screenshot on the Mac with either Command-Shift-3 or Command-Shift-4, and they will be dumped on your desktop. One major annoyance, however, is that the files created have no ...
7
votes
3answers
3k views

Why are PNG-8 files mangled when opened in Photoshop?

Why are some 32 bit PNGs opened in Photoshop with Indexed Colors and no transparency? For instance, I grabbed a png icon file of the Stack Overflow logo at: ...
1
vote
3answers
3k views

how to change the png file background to transparence

I used Paintbrush drawing an icon, if it is on a colored background, it will display a white block shown as below. I prefer to change the icon background from white color to transparent color: ...
1
vote
4answers
2k views

Make Thunderbird 3 paste inline images as GIF or JPG instead of PNG

I send email to people whose mailers don't show PNG images correctly, so it seems to them that I sent no images inline at all. In thunderbird, I can't see any options to paste inline images as GIF or ...
3
votes
1answer
2k views

Auto Save-As PNG in Photoshop

I usually have to save my photoshop documents as PNG and on Mac you have to manually select "PNG" option from the dropdown manually using the mouse. I wonder if its possible somehow to create some ...
1
vote
3answers
6k views

Convert video to apng/png?

I tried to do this with ffmpeg but failed (I also failed making animated GIFs). Is there a simple to use free program (command line is okay) to convert videos to animated PNGs? As long as it doesn't ...
27
votes
8answers
29k views

JPEG vs PNG vs BMP vs GIF

I would like to know which one of these formats requires less memory for the same quality of the picture, and what the main differences between the formats are.
4
votes
5answers
5k views

Is there a way to use an inline PNG image in an Outlook e-mail?

In my work as a developer I sometimes find myself sending details emails with screenshots to illustrate some point or problem. The content of these screenshots is often text. So knowing that PNG is ...
6
votes
9answers
1k views

How to compress a huge amount of PNG images?

At work, on certain projects I have to manage a lot of images. Most of the time PNG files work the best for what I'm doing. With such a huge amount of images, I've tried using PNG compression with ...