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Questions tagged [png]

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

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24 views

Is replacing PNGs with JPGs the solution to generating reliable images in PDF files?

I generated a PDF from a document that contains many images, mostly JPGs, but some PNGs. In the doc (Libre Office .odt), the page in question looks like this: When I "exported" the document to a PDF,...
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1answer
40 views

Create higer resolution icons from existing png

I have from a very old project a set of icons but I don't have the psd I made. I have 72x72 material design icons like this Is there a way to properly convert this png icons to higer resolutions?
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3answers
87 views

Does PNG bit-depth conversion from 8-bit to 32-bit increase quality?

An image is converted from 32-bit to 8-bit. Is any information lost after converting it back to 32-bit?
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0answers
19 views

Is it possible to render and/or recover half of an apparently damaged PNG file?

I have a chunk of a PNG file, missing its end. An unknown amount of data from the IDAT chunk is missing, as well as the IEND chunk. I've inspected the IHDR and it looks completely fine, correctly ...
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1answer
34 views

Why binary files like this snippet of a PNG has all this whitespace in it

Here is a snippet of the first part of a PNG file viewed just by opening it up in Sublime Text and viewing the hex code directly. 8950 4e47 0d0a 1a0a 0000 000d 4948 4452 0000 02e7 0000 0155 0806 0000 ...
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1answer
102 views

ffmpeg resize PNG image sequence using alpha padding

I am trying to resize a sequence of PNG images using alpha padding (the images are already surrounded by alpha pixels). The following command resizes how I want, but it adds black pixels: ffmpeg -i "...
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1answer
675 views

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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1answer
36 views

Convert bmp to png and black colors to alpha

I exported some sprites from the game Half-Life; however, they seem to have tones of black instead of the alpha channel. For example: How do I convert the black colors into alpha/transparency?
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76 views

How to extract/convert hundreds of .mov files into PNG image files,automatically creating a folder for each group of PNG files extracted

I need to batch extract and convert hundreds of .mov files into PNG image files, automatically creating a folder for each group of PNG files extracted. (I’m working on Windows 10). Can you suggest to ...
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0answers
111 views

Irfanview: How to stop gif images from overriding resize settings

I have set my Irfan View to automatically Scall all Images to window size. This works great for normal images. However I have noticed that, instead of fitting gifs into the window the same way it does ...
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0answers
54 views

How do I use ffmpeg to hide a png randomly in one frame of the video?

I like to hide little Easter eggs in all my videos, but it is rather tedious. Is it possible to hide a png in one frame preferably at random locations/orientations within said frame using ffmpeg?
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218 views

How do I extract images from .ccz or .pvr.ccz files?

I'd like to edit some images that are used in an iOS app but I don't have the source images anymore. What's the best way to extract the original image back out? I tried Texture Packer and PVRTexTool, ...
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97 views

Powerpoint “random” wrong thickness on diagonal lines

When I include a graph into a powerpoint, diagonal lines are sometimes "bolded" upon display. Sometimes the display will look like this, which is the intended display: Other times, it will look ...
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1answer
53 views

What color is this PNG?

This: https://user-images.githubusercontent.com/23437045/33275828-c96e8810-d3a4-11e7-9e36-f8fed85b6203.png That's what QuickLook shows: This is what Preview shows: This is what Firefox shows (...
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3answers
639 views

I am seeing animated PNG files on some sites in lieu of GIFs. How can I save/download them?

I know how to save a GIF, it's super easy. Just right click and save. Voila! But with these new animated PNG's, I haven't the foggiest. Without using some sort of screen scrape where I'm grabbing the ...

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