23
votes
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Why does a GIF increase in size when I add a logo although number of colors stays the same?
Color number is just half the game. The other is to compress the picture after color reduction. This lossless compression, searches for repeated patterns in scanline order.
Long story, in short: When ...
- 57.6k
17
votes
Why does a GIF increase in size when I add a logo although number of colors stays the same?
Although joojaa is mostly correct, actually GIFs do not use Run Length Encoding. They use the LZW algorithm.
Basically, this algorithm can take advantage of EXACT repetitions of horizontal strips of ...
- 271
15
votes
Accepted
Why is PDF much larger than PNG for a vector design?
Since you haven't shown your PDF export settings, I can only make some guesses.
If you have the "Preserve Illustrator editing capabilities" option checked when exporting the PDF, that could ...
- 83.6k
11
votes
Accepted
Svg file size more than a png image
Can you post the original SVG image and link it here? Really it seems that you've done everything right in the SVG, all your shapes have anchor points.
PNGs are not necessarily larger than SVG!
It ...
- 256
11
votes
Accepted
Why pixels do not weight the same? (in bytes)
Compression efficiency
A naive bitmap encoding stores all the pixel values directly. However, since there almost always is some redundancy in the image data, compression can be applied to reduce the ...
- 236
8
votes
Svg file size more than a png image
Hum. Size is relative. You don't really have an SVG file of the same size as your png. In reality, you have a vector file that under this specific conditions match the dimensions of the PNG.
Check ...
- 36.2k
8
votes
Accepted
Why Is Image Exporting At Larger Dimensions Than In Illustrator File?
You are exporting at 300 ppi which is more for printing, for screens, I believe that the number is generally 72 ppi.
I personally would just use Save for Web (Alt+Shift+Ctrl+S) and then manually ...
- 9,969
7
votes
Accepted
What is the easiest way to reduce the file size of a TIFF without losing too much of the image's quality?
I would resave the TIFF file with LZW compression turned on. That should get the size down considerably.
Edit:
If you are using Photoshop, you would simply "Save As", choose .TIF as your format and ...
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7
votes
Accepted
How can I prevent file size from ballooning when using linked images?
Although your file is linked, Photoshop still saves the flattened image data. With a JPG you are unlikely to see any file size savings by using linked files. If you link another layered PSD for ...
- 40.4k
7
votes
Is Adobe Illustrator too heavy for handling complex EPSs?
Depends a lot on a range of issues:
1) sheer vector data density - if it's a truly huge number of points and vectors, Illustrator will bog down.
2) some of the the specific effects applied to given ...
- 9,596
6
votes
Huge Illustrator file after using 3D effect to generate a sphere
What do you mean by 3D effect? You could always just create those spheres by placing a radial gradient inside a circular path. This would be the simplest method to do this.
- 6,664
6
votes
Huge Illustrator file after using 3D effect to generate a sphere
Don't copy and paste the original objects, use Symbols!
John's and Andrew's answers are both completely valid, but here's a third option that has a bit of a different workflow.
You have three ...
- 20k
6
votes
How to choose company logo resolution?
If the logo lends itself to vector format, and (arguably) it should, then you'd be better off designing it in a vector editing program (like Illustrator) and not having to worry about the resolution ...
- 8,562
6
votes
Accepted
Are there any platforms on which we can keep our Psd's and AI file safe and also for sharing purpose?
There are lots of different solutions. If you're asking how design companies share files internally, most would have an onsite server that everyone has access to.
Well structured design companies ...
- 1,173
5
votes
Accepted
How important is it to use the correct resolution?
When working on a project, its obviously important to use the right resolution
Well, it's important to work at the correct size, although arguably not that important*. Work in vectors for anything ...
- 40.4k
5
votes
Why pixels do not weight the same? (in bytes)
White.. (all) pixels R255G255B255
Black line... (x) pixels R255G255B255 and (x) pixels R0G0B0
Red line... (x) pixels R255G255B255 and (x) pixels R255G0B0
1 Red Square .... (x) pixels R255G255B255 and (...
- 208k
4
votes
Layers Styles in Photoshop making the file size huge
First of all: 20MB is not large. I routinely take photos using a Canon 4Ti DSLR which creates 25MB RAW files that are about 21MB when saved as a 1-layer TIFF with LZW compression (after cropping/...
- 4,489
4
votes
Advantages of having fewer paths and anchor points in Illustrator
Generally, if you have too many points in a model you risk getting oscillations on the path since you have a hard time putting the points into the exact location where you need it. So having more ...
- 57.6k
4
votes
Why is PDF much larger than PNG for a vector design?
In general
Let me spam you another answer: Svg file size more than a png image
Here is a graph where the x-axis is the pixel size and the y-axis is the file size.
A vector file is mostly independent ...
- 36.2k
4
votes
My Canvas Size Showing Different when I am trying to change the units
A pixel has no size.... a pixel is not a physical measurement. That unit converter is bogus. It's not possible to tell you the size of a lone pixel in relation to some physical dimension. In addition, ...
- 208k
3
votes
Accepted
Why do Illustrator files end up larger than InDesign files?
Usually Illustrator users will check the option to enable editing of a .pdf in Illustrator — this essentially includes a second version of the publication (AI) in the .pdf.
If you open a file in ...
- 1,186
3
votes
Huge Illustrator file after using 3D effect to generate a sphere
You can go John's way but I would also look into the settings when you're exporting to a PDF.
I created a simple document filled with 3D squares. I then exported as a .ai file.
I then saved the same ...
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3
votes
Accepted
Why are there significant differences in file sizes despite the same format and approximate pixel counts?
So PNG uses compression, and put simply, the best-case is where all bytes are identical and worst-case is going to be random data.
My very basic understanding of PNG is that it compresses based on "...
- 4,489
3
votes
What is the most efficient (size-wise) lossless format to store 2 bit color depth indexed image, preferably in Gimp?
GIF and PNG are both lossless, the 'best' format to use will depend on the actual content of your graphics. Different styles of illustration and levels of detail will compress differently. Try both ...
- 9,498
3
votes
can Illustrator-files with raster images keep jpg compression?
Yep, you can do this. You can either keep them embedded and turn off Create PDF Compatible File, or you can link to the original files (and still turn off Create PDF Compatible File).
Linked files
...
- 12k
3
votes
Photoshop: how to reduce banner quality without changing its size?
Don't change size percentage. Lower the quality instead.
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3
votes
Accepted
Layers Styles in Photoshop making the file size huge
I have clients working with 100-200...700 mb PSD files. One large brochure with many pictures (PSD, TIF, etc) can easily go into the GB+ range. For large print jobs this is 'normal'. Depends on what ...
- 29.1k
3
votes
Are there any platforms on which we can keep our Psd's and AI file safe and also for sharing purpose?
Adobe has its own Creative Cloud storage that's included with a CC subscription. You can use it to share files with others. The people you share with don't need an Adobe account to download files. ...
- 83.6k
3
votes
Accepted
File size dilemma in Photoshop for print-quality large banner
The original file wasn't pixel-based but vector.
Pdfs can contain all kinds of data, not just pixel images. When you open a .pdf in Photoshop, you force the program to rasterise it into a pixel image....
- 25.1k
3
votes
Accepted
How does Amazon compress its images so well?
JPG artifacts are most often noticeable at the edges of large areas containing similar color... there are very few such areas in your particular sample image.
However, there are some considerable ...
- 208k
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