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

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323 views

Convert PNG to Multi-page PDF

I've seen a lot of posts about how to convert a multi-page PDF to PNG but I'm wondering how I can go in the opposite direction if I have the size of each page I want made.
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2answers
63 views

ImageMagick's mogrify tool darkens PNGs (when only trying to resize)

I'm trying to use the simple command to resize images and overwrite the originals: mogrify -resize 80% * My source images are semi-transparent PNGs that happen to be grayscale. The resize operation ...
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2answers
12k 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 ...
5
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1answer
1k views

Convert png sequence to x264 with ffmpeg

I am trying to convert a series of pngs into an mp4 video. I am using ffmpeg, and want to encode the video with the H.264 codec. Using the command ffmpeg -y -r 30 -b 1800k -i _tmp%04d.png -vcodec ...
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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 ├── ...
2
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1answer
256 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 ...
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1answer
20 views

I would like to batch change one colour in a group of PNGs. Mac - freeware software

I hope someone would be able to help me. I have a group of icons in png format. They are all transparent backgrounds with one colour for the actual icon. I would like to change this colour in all of ...
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1answer
100 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 ...
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1answer
29 views

Batch convert images to ASCII art in GIMP

I want to convert a photoset of .png pictures to .txt files using the ASCII art generator of GIMP. I can do this individually just exporting the picture as .txt format, but I can't find any batch ...
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1answer
20 views

Substracting colors and extracting transparency values

Lets say a picture was made to semi-transparent and added on a flat background color. The original picture, background color and result(mixture) is known. But, that added transparency(alpha value) is ...
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1answer
443 views

How can I convert a large PDF to PNG?

I want to convert a very large PDF file (>2GB) to a PNG (or JPEG) file so that it is easier to open and look at. I want to do that without opening the PDF file since it is too large to be opened. Is ...
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1answer
139 views

Transparent regions of pasted png display as black in Inkscape

If I copy and paste, for instance, this image from Chromium or Opera webbrowsers into Inkscape, the regions which should be transparent are rendered as black, like so: How can I avoid this?
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1answer
779 views

gnuplot not working on ubuntu

My initial problem is that i am unable to find png as list of terminals in set term. So using the link http://askubuntu.com/questions/393882/png-terminal-in-gnuplot, I installed the gd library.And ...
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1answer
423 views

How can I add metadata to PNG images on OS X/Linux?

Is there a program for OS X and Linux that I can use to add Textual information to PNG image files? Something for Windows also, maybe?
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1answer
478 views

I need to convert a bunch of *pngs to *.mpg in linux/CENTOS. How can I do this?

Title says it all, and I am not too familiar with LINUX, but I can get by if I get some help. I am looking for a way(s) where I can do the above, or in lieu of that, download a program that will do ...
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1answer
163 views

ming 0.4.2 compilation errors on Ubuntu 12.04 when installing from source code

I am trying to install ming 0.4.2 from source code and it was compilable before on Ubuntu 10.04, but now it' giving following compilation errors when I try to install using command sudo make install ...
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1answer
3k 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 ...
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1answer
1k views

Saving as PNG-8 vs -24: How can I tell how much color info is being discarded?

Using Photoshop CS4 'Save for Web & Devices' -- I can tell with the Color Table how many colors are in use in the PNG-8, but am not sure how much downsampling to 256-colors is reducing the color ...
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0answers
2k 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 ...
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0answers
1k 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 ...
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0answers
524 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 ...
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0answers
48 views

ImageMagick: is there a way to get the same PNG from the same image on multiple platforms?

I have a script for converting game assets to multiple resolutions, via imagick, and when I run the same imagick commands on Mac and Windows (with the same version of imagick - ImageMagick 6.8.7-2), ...
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0answers
224 views

Image optimization: Photoshop CS6 vs jpegtran / OptiPNG

Is there any difference in terms of algorithm for optimization between Photoshop's Shift+Alt+S (save for web) and jpegtran's -optimize and -progressive? It seems my images are not reduced (or reduced ...
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0answers
618 views

.MOV video compressed with PNG has no alpha channel

I have a QuickTime file .mov with alpha channel compressed with PNG codec. What I need is to create smaller version of this file using ffmpeg. Everything works except new mov has no alpha (Adobe After ...
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0answers
231 views

Render Video as png with Alpha

I have pixel art that I want to put in an animated png. I animated it in the timeline, but when I rendered it into a series of pngs, It has no partial transparency. Anyone know how to solve this?
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0answers
869 views

Set .png default compression in Photoshop CS6

Is there a possibility to set .png default compression options to "NONE / fast"? Whenever I try to save as .png, the default option is set to "smallest / slow".
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0answers
94 views

A photoshop png file all the same size generating dilemma

I have a photoshop file with layered componpents that I am animating. I need to save each layer of each element as a png file with the same dimensions (so if a box moves, 3 layers of the psd file have ...
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0answers
2 views

Imagemagick convert -append producing incorrect output

I am trying to stitch together a sequence of images. The first few seem to work fine, but after a couple, bad images appear instead of the specified images. Here are the first several images: ...
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0answers
30 views

How can I edit PNG file rating property value in Windows 10?

In Windows 7 and 8 I was able to edit the rating of PNG files by right clicking on that file and going to Properties, Details, Rating. In Windows 10 this is not available anymore for PNG files, but ...
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0answers
64 views

.png images load great - .jpg images are blurry on website

I've searched around and found lots of information about blurry images and I've implemented some of the fixes I found and it worked on about 50% of them. I'm posting Android apps and iOS apps - all ...
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0answers
42 views

Use Windows rating system with pictures without metadata (PNG, BMP, GIF)

Windows as a native rating system which lets you rate pictures. The problem is that you can only rate JPG/JPEG pictures that contain metadata. You can't rate PNG, GIF and BMP pictures that don't ...
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0answers
218 views

avconv and ffmpeg: errors reading png files

I'm trying to use avconv to overlay data onto a video. I generate PNG files representing the overlay data at 4fps. The PNG files are the 120px wider and 60px taller than the original video, because ...
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0answers
564 views

Mac Cursor PNGs

So I found a collection of PNGs for authentic Windows cursors. Does anybody know where I can find the same for OSX? The only one I've found so far is the following standard black cursor: