Questions about image file formats, a standardized means of organizing and storing digital images. Image files are composed of either pixel or vector (geometric) data. Common image format include JPEG, PNG, GIF, TIFF, EPS, SVG and many more. Ask anything about file formats that's relevant to graphic ...

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2
votes
1answer
55 views

Why is image size becoming larger after cropping it in PS?

I am using photoshop to crop Youtube preview images like this one, which is a .jpg file, the url being "http://img.youtube.com/vi/g-LvhmaHEWA/0.jpg" Originally it is 480*360 and about 25k on disk, ...
2
votes
1answer
35 views

GIMP: exporting as .png does not produce an image with the specified dimensions in “Scale image” or “Print size”

Let us say that I have a 600x600 pixels picture and I want to create a .png file with it that is 6x6 cm in size. What I do is to set the following in "Image->Scale image": I can check in ...
-2
votes
1answer
347 views

What program can I use to view a .gfa file?

I have a .gfa file that needs viewing outside my simulation program. After google-ing .gfa, I found that it belongs to the Graphics Interchange Format along with .gif. But I have not found a viewer ...
0
votes
1answer
50 views

Better way to save photos in InDesign so that they print in higher quality when turned into PDF's?

I create my newsletter in InDesign, and then save it as a PDF. I typically print a few copies from Adobe Reader, but no matter how high quality I set the printer at, my photos always look horrible and ...
38
votes
13answers
2k views

What web graphics formats to use?

Web sites can contain JPEG, GIF,PNG, SVG format graphics. Which ones should be used, and when?
6
votes
5answers
24k views

How to paste PNGs keeping the original transparency

Is there a way to directly paste PNG images in Photoshop and keep their transparency? I don't mean dragging them, but directly pasting from, for example, a browser. Transparency is always replaced by ...
0
votes
1answer
65 views

how to calculate the rate of loss of colors?

JPEG is said to be a lossy quality image format so most people prefer PNG. When JPEGs are edited it seems the quality does degrade(it's demonstrated well in the documentation of GIMP). How can we ...
7
votes
3answers
692 views
3
votes
1answer
102 views

How can I make a png's Alpha contain undetectable colours?

Okay, I'll try to make a long story short. I use PS elements 8 (yeah I know that barely counts a PS). I make textures for a video game mod, and I came across a problem. To help explain I quickly put ...
8
votes
3answers
2k views

How do I easily convert a fuzzy pixel art image back into pixels?

I want to convert a fuzzy pixel art image into a crisp actually-pixel-art pixel art image. An example of this is taking a still from say a youtube clip of a pixel-art animation, and recreating the ...
0
votes
0answers
26 views

Jpeg for vinyl printing

I have a been asked to include a logo (Jpeg format) on a vinyl banner that i am producing. Would it be possible to know if this will be work without creating issue with the print. (will it display ...
1
vote
0answers
47 views

How to properly create and save for web animated slides with text on image background

Following on from this question PNG vs. GIF vs. JPEG vs. SVG - When best to use? regarding mr. @ChuckLeButt 's answer. I have a situation trying to create and save for web a few picture slides ...
0
votes
4answers
8k views

Picture loses quality upon saving in Photoshop CS5

I am using adobe Photoshop CS5, I am transforming my picture into black and white via "Calculations" and then i apply "Shadows and Highlights" filter. It actually looks very good in Photoshop but it ...
0
votes
0answers
44 views

Images aren't sharp in iOS app

I'm developing an iOS app, whereas I've exported several assets from the Sketch 3 design app for mac. I made a new Sketch 3 file using the iOS template and created an iPhone 6 artboard. Then I ...
1
vote
0answers
38 views

What are the relevant ratios for converting to square ratio

I'm building an application that collects images and convert them to a square ratio images for usage as avatars in social networks. I want to understand what is the range of image ratios that I can ...
0
votes
6answers
51k views

How to change the file size of images without losing photo quality using Photoshop?

I have a set of images of up to 20mb each, and I want to reduce the file size without losing quality. How can I do it?
0
votes
2answers
117 views

Crop image background out? [closed]

I just started using photoshop today, and this is my first question in Graphic Design, so pardon me if this is a simple question. I have bee researching for about two hours now, on how to crop out the ...
-3
votes
1answer
132 views

what size should i use to print a shoppin bag? [closed]

I need to design a shopping bag. What sizes should I use for printing? It's a vertical bag. I know the sizes may vary according to shape. What font sizes that should be used? What file format should ...
25
votes
5answers
6k views

Why are raster images still used when vector images have so many advantages?

I have read some posts and see many advantages of using vector images when compared to raster images: They can be zoomed or scaled at any ratio. File-size efficiency. Because vector image only ...
1
vote
0answers
170 views

What image dimensions to choose for mobile and desktop in 2015?

I am working on a portfolio website for a friend showcasing the work in a gallery with photoswipe.com. Just got the original photos delivered. They are between 70 and 100 mb and range from 2551x5124 ...
9
votes
3answers
24k views

What unique benefits does the EPS format provide?

Reading this excellent question regarding logo export formats, and it made me want to ask a question that was a little bit more narrowly focused than that one. I know when to use a GIF and when to ...
1
vote
1answer
32 views

Illustrator image size info

I try compression to used images. How can i see images size (like 15MB, 20MB) to in my Illustrator file. Links window not show embeded images size.
0
votes
1answer
829 views

Reduce BMP file size without losing quality

The input file format is BMP. The required output format is BMP. I do not want a reduction of size or quality, but I want to reduce the file size. How is it possible?
1
vote
2answers
521 views

How do I export a sliced psd file as a single jpeg image optimized for web?

I am a beginner at photoshop and am going a bit crazy here: I have a flowchart and am trying to use the slicing tool to include URLs into my flowchart image. However, when I optimize it for the web ...
15
votes
3answers
4k views

Why do people use JPG images?

I see JPG images everywhere. But why? PNG files have opacity, while JPGs do not. I've tried exporting some images to PNG and JPG to compare size, and they both either match up or the PNG is ...
0
votes
3answers
99 views

How can I optimize my graph images for my website?

The graphs are terribly detailed and include text for identification. These graphs are created in Visio by engineers then passed to me for website article creation. I normally take the graph file, ...
4
votes
3answers
2k views

How to determine what quality a JPG was saved as?

When saving JPG images with Pixelmator or Photoshop, I select a quality from the scale 1ā€“100 that gives optimum file-size. Later on, I sometimes take these images and crop them a little more (not ...
0
votes
2answers
3k views

Importing transparent background PNG in CMYK

So I have Illustrator document in CMYK mode intended for print. I need to import PNG image (because I need to place object extracted from the background). And here I step on the unknown area because I ...
2
votes
2answers
3k views

Saving an 8-bit grayscale image as a 2-bit image

Assuming there's an 8-bit grayscale image; what's the simplest method to save it as a "2-bit per pixel" image? Is it a binary image or something else (like a colormap image)? In the case of binary, ...
0
votes
0answers
52 views

Image processing automation

How does Photoshop treat a perfectly square image? Are they considered a Portrait or Landscape. I need to automate some image processing and I need to filter out perfectly square (aspect ratio 1:1) ...
14
votes
9answers
6k views

What programs can be used to make animations?

I am specifically interested in software that can be used to combine existing sets of images (frames in the animation) into an animation. Having the ability to add transitions/effects between the ...
27
votes
6answers
10k views

Can I reduce the file size of an SVG to be closer to its JPEG equivalent?

I have an image that Iā€™m using on a website. I would like to use an SVG so that it can be any size and still look crisp. This dropbox contains the SVG file as well as the original Illustrator file. ...
1
vote
1answer
583 views

Planning to use different size images across different devices

The current framework I use to design webpages currently doesn't do anything to optimize images across different devices. As I see it, their are four types: mobile, tablet, desktop PC and large ...
1
vote
2answers
14k views

How to reduce file size of animated GIF?

I'm making an animated GIF web ad that needs to be 40KB or under. Unfortunately the one I put together is much larger than that. How can I reduce the file size without losing too much image quality? ...
0
votes
0answers
316 views

Converting Fireworks document into a high-res .pdf

I created a image in Fireworks. I need to convert the image into a high-resolution .pdf. I used export wizard on Fireworks to convert the image into a .tif. I then opened the file in Photoshop and ...
2
votes
1answer
188 views

Can you include retina and non-retina images within the same sprite?

When building a web page, I've always created 2 different sprites for my icons. A sprite for normal images and a sprite for retina images. The retina images are saved out twice the size and twice the ...
1
vote
3answers
13k views

What does rasterization do to an image?

What is the general purpose for making or converting graphics / images to a raster format? What happens to an image when it is rasterized?
0
votes
0answers
834 views

How to differentiate 24 Bit PNG and 32 Bit PNG file?

When image is encoded in PNG format, it can be encoded either in 24 bit format (rgb) or in 32 bit format (argb). Both the files appear as .png files. Then how it is possible to differentiate these two ...
0
votes
1answer
121 views

Change contrast/colors, etc to multiple selected images

I have a simple request, but can't seem to find the answer online. I want to change the colors of each of these green tiles to red. When I selected all images, my Image > Adjustments tab is grey'ed ...
22
votes
4answers
21k views

What are the differences between vector graphics and raster graphics?

I understand from prior knowledge that there are two different image format / composition options available for creating images; raster and vector. I would like to understand more about them, such as ...
1
vote
1answer
390 views

Is there a way to make an image larger without losing quality?

What's the best way to take the attached 'CobraJet' 72 dpi image and prepare it for inclusion in a printed poster? 1) I tried finding similar fonts 2) I tried blowing image up and blurring it 3) I ...
5
votes
2answers
2k views

Is it possible to convert PostScript to SVG? (Inkscape)

Is it possible to convert a PostScript file to SVG? Based on an answer in Tex.SE, I tried to use inkscape: inkscape test.ps --export-inkscape-svg=test.svg This indeed produced an SVG file, but ...
1
vote
4answers
265 views

Which raster image format is better for digitally displaying images when there is no transparency; JPEG or PNG?

I'm trying to determine which format is better to use when there is no transparency in an image. More importantly though, I'm trying to figure out when it's better to use one over the other. From ...
18
votes
9answers
99k views

Facebook: Ways to preserve image quality of uploaded images?

After uploading an image, Facebook converts it to a new image. Their conversion process introduces artifacts and mottling to the magenta-ish parts of the image. Original image: Facebook's ...
3
votes
3answers
11k views

Are there methods for cutting down on file size with animated gifs without decreasing quality?

I'm in the process of replacing a lot of flash content with anything other than flash. Most of it's simple animated diagrams such as the one below: Rather than write javascript each time an image ...
0
votes
2answers
8k views

Is there a quick way of converting multiple files from JPG to PNG in photoshop?

I made a rookie error and accidentally saved about 20 images in Photoshop as .jpg files rather than .png files. Is there a quick way I can convert all these files to a .png format at once rather than ...
2
votes
2answers
228 views

Small JPEG image (just 21.8 KB) without lack of quality ā€” why is that?

This image size is just 21.8 KB without lack of quality. Why is that? How is it done?
5
votes
2answers
3k views

Embedding pdf in illustrator

So, I'm using adobe illustrator for creating vectorial figures, mainly for graphs. In illustrator, creating graphs is not so well implemented, so I'm using another tool to make them (e.g. R, xmgrace, ...
2
votes
5answers
650 views

What is the purpose of the resolution property of images (when creating/editing)?

I want to check something I don't quite understand with the size/quality properties of an image. OK, as much as I understand, the size of an image you create in Photoshop, for example, will determine ...
2
votes
2answers
9k views

Best file type of picture for print

I'm doing layout design, pro bono stuff for my uni, and I haven't done much designing lately. But back when I did my high school newspaper I remember what I was told: your pictures must be in .tiff ...