PNG (portable network graphics) is a popular image format that supports 32-bit colors and transparency.

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0
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1answer
5k views

How can I create a 24-bit PNG with alpha and no transparency in Fireworks CS3?

We're creating icons for a mobile app, and the developers have asked for very specific files. One needs to be 48px x 48px and has to be a 24-bit PNG with alpha and no transparency. I'm using ...
0
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0answers
21 views

Is there any quality in loss in FFMPEG when converting to .PNGs?

I need to dump video files to their individual frames as .png files, and I'm using FFMPEG to do so like this: ffmpeg -i video.ts -r 59.94 dump/%d.png Now, I get all of the frames I need, and they ...
5
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1answer
3k views

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 ...
4
votes
1answer
3k views

How do I merge a folder of PNG images to a mp4 movie using avconv?

I have a folder containing many time stamped PNG images which I'd like to merge to a short movie. The contents of that directory looks like this: └── images ├── img_20130421_115547.png ├── ...
7
votes
3answers
2k views

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?
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0answers
18 views

Windows 8 Search Fails to find PNG Files in Indexed Folder

The indexing service has been on, and has not been off in the past year. I've rebuilt the whole index in the past, at it didn't solve the problem. The folder is set to be indexed (Control Panel -> ...
3
votes
0answers
105 views

Windows 7 Colors (PNG darker in browsers)

A few days ago I installed f.lux, and since then I've noticed that my PNG images look darker in Firefox. I've never encountered such a problem before. It doesn't work with it (f.lux) disabled either. ...
0
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1answer
35 views

Prevent Office 2010 from opening Hyperlinks in Internet Explorer

I have several hyperlinks in an Excel 2010 sheet that are .png image files. I have .png files set to open in MS Paint. In Windows 7, clicking a link would directly open the file in MS Paint. But in ...
14
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3answers
21k views

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?
4
votes
6answers
4k views

Is there any way to save a PNG-8 file with Alpha Transparency in Photoshop?

I recently discovered something that I previous thought was impossible: PNG-8 files can store Alpha Transparency in the same way as PNG-32 files can. Not Indexed Transparency (like GIFs), but full on ...
0
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1answer
69 views

ffmpeg convert image to mpeg/mp4 gets mp4 file with 0 bytes

I'm trying to convert a png file to mp4 file but I get 0bytes mp4 files. Here is my code structure: ffmpeg -r [framerate] -i [images] -s [resolution] -vcodec libx264 [videofilename].mp4
0
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1answer
53 views

ffmpeg convert image to mpeg/mp4

To convert jpg to avi this code works perfect on my server shell_exec("ffmpeg -f image2 -r 1/10 -i image.png out.avi"); I need to convert jpg/png images to mp4/mpeg. How do I do this?
606
votes
5answers
82k views

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 ...
4
votes
2answers
73 views

Why do these PNG images differ so much in size?

I created a lot of tiles and each of my tiles is less than 2 KB except one which is 16.2 KB. It is very similar to another tile I created which is 1.48 KB. Yes, I'm nitpicking about the sizes here but ...
1
vote
1answer
33 views

Batch Inverting .PNG Images while maintaining transparency

I have a large number of monochrome PNGs that are black on transparent. I would like to invert them to be white on transparent. I've tried using XnConvert but it doesn't maintain the transparency.
66
votes
13answers
48k views

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 Mac OS X? Edit: Dylan B had a good answer with ImageMagick. For reference, to install ImageMagick with SVG support on ...
0
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0answers
21 views

What kind of compression is PNG - ZIP in irfan

I downloaded the DLL plugin for PDF files and and am extracting files to PNG compression level 1. Information for extracted files says "compression PNG - ZIP" Are they still PNG files or ZIP files ...
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votes
5answers
12k views

Convert BMP to PNG on right-click in Windows 7

I want to select 1 or more BMP files in Windows 7 file explorer, right-click them, click "convert to PNG", and have them all replaced by PNGs with identical information. What are some possible ...
11
votes
2answers
29k views

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-...
21
votes
3answers
23k views

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 ...
6
votes
2answers
40k 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 ...
1
vote
1answer
354 views

FFMPEG combine PNGs of different size into movie

Is it possible to combine PNG of different heights without rescaling (like tile does)? I have pairs of images of same width, but first has height 900px and second 200px. I would like them to merge ...
1
vote
2answers
80 views

Batch Convert BMP to PNG & keep original created/modified dates

I have many screenshots from video games over the years that I want to convert while maintaining their timestamps so I can keep them chronologically organized with other images. I've already used an ...
0
votes
0answers
29 views

pnmtopng on large file

I am running pnmtopng on a 101M, 3000x4000 pixel PNM file. I get the error pnmtopng: ASCII decimal integer in file is too large to be processed. every time I run it. I looked through the source and it ...
4
votes
3answers
2k views

Building ImageMagick on OSX Lion and can't link libpng

I am trying to build ImageMagick 6.8.0-5 on OSX Lion with support for libpng. I am just using the standard ./configure make make install procedure. I succeed in compiling when I do not reference ...
0
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3answers
228 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 ...
4
votes
1answer
3k 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 ...
9
votes
5answers
14k views

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 ...
0
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0answers
17 views

Photoshop can not open screenshots from Skype [duplicate]

I am using Photoshop CC 2015 on my PC and also Skype. Whenever someone shares a screenshot with me via Skype I have to go ahead and save is in my personal files, and then open it manually from there ...
22
votes
4answers
55k views

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 ...
4
votes
4answers
7k views

Bulk convert PNG-24 to PNG-8 files with best quality

Can anybody recommend a good method of bulk converting a large amount of PNG-24 files to PNG-8 with as little loss of quality as possible and maintaining transparency? I've tried ImageMagick but the ...
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0answers
1k views

What is @OpenWithToastLogo.png?

Background Recently, I copy-n-pasted some text from Notepad into a command line window. The copied text included a TAB character prefixing the text I copied, for example "{tab}test.exe". When I ...
0
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0answers
56 views

Convert image sequence to animated GIF in OS X command line without 3rd party tool?

Is it possible to convert image sequence (e.g. PNG) to animated GIF with OS X command line (sips)? There is many guides that show how to make GIF to PNG, but not with other way. I know there is like ...
33
votes
8answers
73k views

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.
3
votes
1answer
2k 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 ...
0
votes
1answer
56 views

How to convert PNG to ICO so it doesn't get resized

I have this small icon: The problem is that it gets resized whenever I use it for my application: I need it to stay it at 16x16 and not get bigger. Note I'd need to do the same with more than ...
0
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0answers
24 views

Some PNGs are not being displayed on IE8

I'm performing QC on an eLearning course my team has built and I'm having an issue with some PNGs that are not being displayed on IE8. Within IE9, IE11, and Chrome, the images are shown (floating ...
70
votes
10answers
63k views

How to convert a PDF document to PNG?

Is there a free way to convert a PDF document to a PNG image?
27
votes
6answers
51k views

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 ...
10
votes
8answers
29k views

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?
99
votes
8answers
115k views

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.
14
votes
9answers
50k views

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/...
5
votes
1answer
18k views

how to remove a png file's background using Paint.NET

I have a PNG file that is composed of only two colors: white and dark. Majority of image space is occupied by the white color but I want to remove this white color, thus giving the image a transparent ...
1
vote
1answer
39 views

Github Gists - Download Gist as Image File for Code Report

I have some pretty huge SQL queries as github gists and I would like to download them as images (eg PNG) in order to put them in a Word report document. I cannot find a way to do that, they just ...
1
vote
3answers
10k views

how to change the png file background to transparent

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: ...
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votes
3answers
16k 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 ...
10
votes
4answers
16k 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
1answer
2k views

FFmpeg - PNG / JPG - Invalid data found when processing input

I am trying to add a watermark to a video with FFmpeg. I have a custom build of FFmpeg that I am creating with a view to keep the binary size down. I seem to have excluded the ability for FFmpeg to ...
1
vote
1answer
490 views

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 ...
0
votes
1answer
31 views

How do I discard transparency channel when encoding files with bpgenc?

Sometimes png pictures contain redundant alpha channel. While this is usually not an issue, for libbpg it triggers more complicated mode which is not compatible with fast x265 encoding or with ...