Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [png]

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

0
votes
0answers
19 views

Specify graphic resolution for output in LibreOffice

LibreOffice allows the resolution to be specified for any file when "exported" in a graphic format such as png. In other situations, such as mail merge output, the resolution of graphics formats ...
0
votes
1answer
80 views

FFmpeg - Adding watermark on an image

I used this command to add a watermark on an image: ffmpeg -i input.png -i watermark.png -filter_complex overlay=15:15 output.png But I got this error: [NULL @ 0x7a1403f800] Unable to find a ...
0
votes
0answers
30 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,...
1
vote
1answer
41 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?
1
vote
3answers
161 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?
1
vote
0answers
20 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 ...
0
votes
1answer
40 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 ...
0
votes
1answer
163 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 "...
2
votes
1answer
1k 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?
0
votes
1answer
42 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?
0
votes
0answers
79 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 ...
0
votes
0answers
155 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 ...
0
votes
0answers
58 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?
0
votes
0answers
246 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, ...
-2
votes
1answer
54 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 (...
0
votes
3answers
781 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 ...
0
votes
1answer
339 views

Ffmpeg - save bmp file as different extension

I want to save a bmp file as 1.mp4 using Ffmpeg, how to achieve it? The question is very simple. I have some source file, lets call it source.png and I want to encode it as bmp, but to save it as a ...
0
votes
1answer
387 views

Split .png into multi-page pdf with imagemagick based on whitespace

Currently I have a hand written image darkened with convert -level 50x100% It contains chunks of text separated by whitespace. Simply printing the image would split handwriting in half. Is there a ...
2
votes
1answer
404 views

Can PNG images contain embedded thumbnails like JPG files?

Can PNG (Portable Network Graphics) image files contain embedded thumbnails similar to how JPG files can?
1
vote
2answers
3k views

How do I export a Word document as a PNG?

I have a Microsoft Word 2010 document which I want to save as a .png image file, so I can include it as part of a PowerPoint slide. In Powerpoint, there's a built in "Save As" option for exporting ...
0
votes
1answer
228 views

Convert SVG image to PNG with magnification

How ca I convert a SVG image to a PNG image with magnification and without pixelation? I have tried to open with Paint.NET (with a plugin) and GIMP but I did not succeed. The final image is not ...
-1
votes
1answer
320 views

How can I convert a .png image to .pdf with OCR text? [closed]

I have a .png file that is a screenshot of an article I found online. I would like a PDF version of it, with all the text selectable. Are there any apps or tools that do that?
0
votes
2answers
525 views

Render HTML email as PNG

I have an email message in my IMAP inbox. It's HTML email that makes use of fonts, tables, images and such. How do I convert this email message into a PNG image that looks reasonably close to what I ...
0
votes
1answer
654 views

Png picture in Excel distorted when exported to pdf

When I insert a png picture with transparent background in Excel, it looks good in sheet and print preview, but after save in pdf format, the lines gets distorted. The problem occours using a pdf ...
2
votes
3answers
190 views

How do I open .ai files on Windows 8.1?

Specifically this file https://stock.adobe.com/stock-photo/flux-vague-de-dollars-illustration/35571058 I tried to rename the file with .pdf extension, but FoxIt would not open it. I tried to install ...
-6
votes
4answers
9k views

How to Create a PNG image using just notepad? [closed]

As we know, all files are simply containers for data. PNG files are no exception to this rule. A PNG file basically just refers to a rectangular grid of colored pixels, so it can't be that ...
0
votes
2answers
148 views

How export juxtaposed layers in a PNG using The Gimp?

The Gimp allows you to save animations in the GIF format, but I wondered if there were a way to export the animation layers in one PNG, with every layer juxtaposed next to (the right of) the previous ...
1
vote
2answers
2k views

ffmpeg — How do I overlay a PNG over another PNG?

I have PNG A with alpha layer, which I want to overlay on top of another PNG B. How do I do that with ffmpeg? I tried ffmpeg -i A.png -i B -filter_complex "[0:v][1:v] overlay=0:0" out.png, but I ...
0
votes
1answer
39 views

I need a 0.16 in * 0.16 in square to be 70 px * 70 px, what resolution do I render it at?

I'm rendering a PDF as an image in GIMP, basically I need every 0.16 by 0.16 inch square to be a 70 by 70 pixel square. What pixels/in resolution do I need to import the PDF as, and how does one ...
0
votes
1answer
78 views

Screenshot saved in PNG has different size from Linux than Windows

Here's the thing: I moved full time to Linux a few weeks ago and was editing a spreadsheet that I use regularly and suddenly realised that when I take a screenshot of a portion of it the resulting ...
1
vote
1answer
4k views

Fixing corrupt PNGs missing the IEND chunk

I have .png files outputted by a tool that converts .emfs to .pngs but that doesn't add the IEND chunk to the end. Therefore, other tools, like ImageMagick, won't go near them as they detect them as ...
0
votes
1answer
239 views

Powershell script for processing pngs via exe parameters while maintaining source file structure

I'm currently working on a personal project where I need to resize tens of thousands of png files. I know little to nothing about scripting, PS or programming (I'm a graphic artist) I'm using a piece ...
0
votes
0answers
349 views

ImageMagick convert chokes on a large PNG, makes system nearly freeze

I have this PNG file which I want to convert to JPG format. It's a little large - about 20,000 x 30,000 pixels (but compressed very well, i.e. 780 KB). I'm running convert myfile.png myfile.jpg and ...
0
votes
0answers
99 views

Export PNGs from Adobe Illustrator

I'm a beginner trying to design a simple square logo in illustrator (to use as a favicon and as an icon for a chrome extension). I'd like to export the image as a png in 3 sizes- 16 px, 48 px, and ...
3
votes
1answer
1k views

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 ...
0
votes
1answer
26 views

Store caption into image [closed]

I am a newbie about the JPEG format, just knowing that it contains some metadata. 1) Is it possible to save, in a metadata field of the JPEG format, a caption for the image with an appropriate length?...
11
votes
1answer
940 views

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. ...
2
votes
2answers
227 views

Is it possible to retrieve the compression level from a png image?

In my project we deal with png images. In order to create (encode) and read (decode) png images we use libpng. From libpng it is possible to specify the compression level using ...
0
votes
1answer
584 views

Reversing transparency in a png with photoshop

I have a picture in which two characters are standing one over the other. The problem is that in said picture i accidentally dropped the opacity levels of the first character who was superposing the ...
2
votes
2answers
1k views

Batch extract thumbnails with ffmpeg

I need to batch extract thumbnail pic from hundreds of .mpg files using the following bat code, which works like a charm, but the only drawback is that the output png are with file name like "filename....
2
votes
0answers
90 views

Why have multiple PNG files been transformed to glitches on the external hard drive?

Pictures have been made and edited using Adobe Photoshop and saved as PNG on a MacBook If the hard drive of the PC is almost full the edited pictures will be copied to an external hard drive in order ...
3
votes
0answers
160 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
votes
1answer
616 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 ...
0
votes
1answer
2k 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?
4
votes
2answers
243 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 ...
2
votes
2answers
857 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.
1
vote
2answers
789 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
65 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 ...
0
votes
1answer
189 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 one ...
1
vote
1answer
105 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 ...