Questions tagged [png]
PNG (portable network graphics) is a popular image format that supports 32-bit colors and transparency.
318
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Why does this PNG image display differently in Chrome & Firefox than in Safari and IE?
Check this image out:
On Chrome and Firefox it will show as a pear. Now, try to save it and look at it saved on your desktop. Also, try viewing in Safari or Internet Explorer. It will display as ...
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294
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24
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Command-line application for converting SVG to PNG on Mac OS X
Are there any command-line programs that can convert an SVG to PNG that run on macOS?
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13
answers
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Batch converting PNG to JPG in linux
Does anyone know a good way to batch-convert a bunch of PNGs into JPGs in linux? (I'm using Ubuntu).
A png2jpg binary that I could just drop into a shell script would be ideal.
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12
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How do I convert an SVG to a PDF on Linux
How do I convert an SVG (containing a few words of latin text and some simple vector graphics) to a PDF on Linux?
I tried Inkscape 0.47 on Ubuntu Lucid, but it moves some sub-graphics randomly, and it ...
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How is PNG lossless given that it has a compression parameter?
PNG files are said to use lossless compression. However, whenever I am in an image editor, such as GIMP and try to save an image as a PNG file, it asks for the compression parameter, which ranges ...
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How to convert a PDF document to PNG?
Is there a free way to convert a PDF document to a PNG image?
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10
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How do I convert a .PNG into a .ICO?
There's an image in the VS2010 stock icon pack which is only included as a PNG, which I would like to use as an ICO (I want XP and earlier users to see the icon). How can I convert the PNG into the ...
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7
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What software can I use to read png metadata? [closed]
I know that I can create a simple little Qt based application that adds and read
png metadata, using the QImage.setText(...) and QImage.text(...).
That metadata can then be read with a linux command ...
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80
votes
7
answers
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Convert many images to one PDF on Mac
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 ...
- 1,390
50
votes
4
answers
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Invisible PNG image layer that is only visible as a background
I have recently came across a very peculiar image, with strange properties. The image is in PNG format and just shows a simple bird with a transparent background. My friend sent me the image with ...
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50
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3
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correctly sizing PNG images in markdown with pandoc for html/pdf/docx
I am trying to use markdown with pandoc to convert a single document into html, pdf, and docx. It's an extremely simple document containing only math-less text and a few images. The images are in ...
- 1,538
43
votes
8
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JPEG vs PNG vs BMP vs GIF vs SVG
I would like to know which one of these formats requires less memory for the same quality of the picture, and what are the main differences between these formats.
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4
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Photoshop How to save selection to PNG
I have a largish PSD file with a couple of hundred layers, that I would like to extract selected areas from into PNG files.
Areas can consist of a couple of layers.
Being new to Photoshop, I have ...
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3
answers
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How to create an uncompressed AVI from a series of 1000's of PNG images using FFMPEG
How can I create an uncompressed AVI from a series of 1000's of PNG images using FFMPEG?
I used this command to convert an input.avi file to a series of PNG frames:
ffmpeg -y -i input.avi -an -...
user995074
38
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6
answers
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How to convert a multi-page PDF file to PNG files, with one PNG file per page of the PDF document?
How do I convert a multi-page PDF file to PNG files, and automatically save one PNG file per page of the PDF document (for Windows 7)?
I have tried virtual printers (CutePDF, Bullzip PDF Printer) and ...
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votes
3
answers
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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 ...
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How can I save a graph to a PNG or GIF file in Microsoft Excel?
How can I save a graph to a PNG or GIF file in Microsoft Excel?
I know I can save as an HTML file and use the image created there, but I suspect there is a way that doesn't create other clutter of ...
- 1,863
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10
answers
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Best PNG Compression Software? [closed]
I've just been trying to compress an image with the PNG image format and have had varying results from different applications. For reference, the image I am trying to compress is a screenshot of this ...
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25
votes
2
answers
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"Bake" an SVG image into a PNG at a given resolution? [closed]
I'm on Linux and I'd like to take an SVG file and bake it into a PNG file at a given resolution (scaling). Is there a way to do this quickly and effectively from the command line?
I'm looking for ...
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How to read Fireworks PNG multilayer files without Fireworks
I recieved a couple of Fireworks PNG files. Fireworks has a special format for saving several source images in layers in the png file.
How can I read these without having Fireworks installed?
(im ...
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7
answers
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Can't see PNG previews in Windows 7?
I´m using Windows 7 x64. I can see the .jpg, .gif, etc. preview thumbnails but if .PNG, I only see the generic image, and not the image preview like in the other formats.
What can I do to fix this?
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How do I convert (.gif to .png) this image to get the original view?
I am trying to convert this image, http://en.wikipedia.org/wiki/File:Dijkstra_Animation.gif, to a series of .png files.
This was pretty simple, I used the convert command in Linux:
convert ...
- 1,267
22
votes
6
answers
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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).
- 4,853
22
votes
2
answers
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Export frames of animation separately
I'm working with lots of Photoshop animations provided to me by a designer. Each one is made of six frames, and I need to export each frame so that they have the titles (say): left*.png, where * is 0-...
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votes
3
answers
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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 ...
- 307
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votes
10
answers
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How to reduce PNG file size for web?
I have a PNG-24 file with transparent background and its current size is 1.5 MB. How to reduce size or use PNG-8 file format and keep same quality ?
PNG file from here:
http://www19.zippyshare.com/v/...
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5
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How can I find out if a PNG file is 24 bit color or 32 bit color on Mac OS X?
I have PNG image files on Mac OS X. How can I find out if an image is 24 bit color or 32 bit color?
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How can I convert a series of PNG images to a video for YouTube?
I have a sequence of PNGs (here is one specimen) which I turn into a video with ffmpeg:
ffmpeg -r 10 -i image%03d.png -s 1380x720 -c:v libx264 -qscale 10 -r 30
basf_merck_libx264.mp4
With VLC ...
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How to change the default editor for PNG files from MS Paint to paint.net in Windows 10?
I have paint.net installed in my Windows 10 Pro. When I right-click a PNG file in the Windows Explorer, I see the Edit command. However, it opens the Windows Paint app, and I'd like to change it to ...
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3
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How to convert GIF files to PNG or JPEG in OS X with command line?
I have 10k+ GIF files that I need to convert to PNG or JPEG preferably using command line so that I can automate it. I'm not worried about losing quality or transparency, just need to prepare files ...
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Is there still any reason to prefer GIF over PNG when creating images for web pages? [closed]
Long ago, I used to avoid the PNG image format when building web pages because browser support was lacking. I remember having a PNG on a page could cause the QuickTime plugin to be loaded - yuck.
...
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How do I convert a TTF into individual PNG character images?
I want to generate a .PNG image for every glyph in a .TTF font file. How do I do that?
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10
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Multiply blending mode to PNG
I have a layer in Photoshop with multiply on, when I however save to web it loses the blending mode.
How can I keep multiply or achieve the same effect in another way?
Jonas
14
votes
9
answers
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Extracting the layer transparency into an editable layer mask in Photoshop
Is there any simple way to extract the "baked in" transparency in a layer and turn it into a layer mask in Photoshop? To take a simple example: Let's say that I paint a few strokes with a semi-...
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Convert DDS to PNG using linux command line
I need to convert thousands of DDS images to PNG format in Linux, preferably in command line.
Is there any program available for such task?
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Copy an image to clipboard from the Mac terminal
I have an image, Test.png, which I want to copy to the clipboard from the terminal as part of a Bash script so I can paste it into Word.
I've tried using pbcopy like this:
$ cat Test.png | pbcopy
...
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votes
1
answer
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Using ffmpeg to make a movie from png files
I have 277 800x600 png files with filenames with the format island_sizes-CSH(II)-###.png where ### is a number starting with 084 and ending at 360.
I'm doing
ffmpeg -i island_sizes-CSH\(II\)-*.png ...
11
votes
5
answers
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How can I create a new image with transparent background in Paint.NET?
I would like to do some basic graphics using Paint.NET. I would like to start with a transparent background and draw on top of it, but I can't find any settings on how to do that. I only get a new ...
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ImageMagick Convert: How to produce sharp resized PNG files from SVG files?
I am using this command to generate a sharp 512px wide version of an SVG file that I have:
convert -geometry 256 pinterest.svg pinterest.png
This is the source file:
<?xml version="1.0" encoding=...
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How can I render a website as an image from the shell?
Looking to say "http://example.com/index.html -o website.png"
Is there an existing program to do this? I'm ok with doing html to png. Is there a program for that?
keith
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votes
1
answer
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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.
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Which is the best utility for opening .jpeg, .png and .tiff files on Linux? [closed]
Which is the most commonly used utility?
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What are the weird images inside the RCDATA of System32/imageres.dll used for?
I was looking at what's inside C:/Windows/System32/imageres.dll (which contains most icons used by windows 8.1) and noticed it also contains some files inside its RCDATA which are not image files.
...
user169819
9
votes
4
answers
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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 ...
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4
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How to convert .tga files to .png?
I wish to convert TGA files (from Steam) to something more suitable, like PNG. I can't find any converters or workflows, I don't mind which it is. For Snow Leopard.
edit: Are there any free fronts to ...
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How to change DPI of a PNG file? (in command line, without ImageMagick)
I am looking for a way to change the DPI on PNG image files. Using ImageMagick this is easy:
$ convert -density 150 -units pixelsperinch file.png file.png
The problem is that I will run this command ...
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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: http://blog.stackoverflow.com/wp-content/...
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votes
3
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Point sample opacity/alpha in Adobe Photoshop?
I opened a PNG containing an alpha channel in Photoshop and wanted to get the opacity / alpha of a given point in the PNG file, so that I could match that opacity in a new photoshop layer. How can I ...
- 9,797
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How to convert all non-white parts of an image to black?
I have the following png image:
I want to convert the edges that aren't black to black. I have tried
convert <input> -threshold 80% <output>
but this gives
which has changed the look of ...
- 937
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votes
6
answers
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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 ...
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