Hi I am trying to design a pixel perfect envelope icon. That actually sounds pretty easy but Illustrator will not let me do it.
I am not able to create a simple diagonal line that would have an even number size, there is always something along the 20.607 px or 41.213px
When I am trying to resize it and input a number that I want into the transform box, Illustrator changes them, for example typing in 42px will change it to 41.99px
I am using Pixel grid and Pixel Perfect also have snap to pixel on.
Tried without all these options and had the same problem.
When i try to resize it by using direct selection tool and just move it around it will not allow me to have a full number there is always 42.123px or 42.005px
I've tried making a square and then changing it into the triangle to use in my envelope icon, and this did not work either.
I am using Illustrator CC 2017 on MacOS
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you can deactivate the snap to grid command because it scale the object depending on the number of pixels so it can increase the size
a little bit.
- If you have old version you can deactivate it in the new doc window from the advanced section.
Yes, I thought as well that it might be this snap to pixel thing, but unfortunately it does not work.
What is more when I make a perfect square transform box shows me two values
First one is Transform Box values which are: 30.012px x 30.012px
Second one is Rectangle Properties which are 28px x 28px - which is exactly what I made.
Why is this first value not an even number? I have noticed that this value is the size of the box with a Stroke aligned to centre. When I change stroke to be aligned to the inside transform box shows value of 28.022 px by 28px
and rectangle shows 28px x 28 px
I think that these two values should be exactly the same but they are not. When I change the transform box first value from 28.022 px to 28px it changes the first value of my rectangle box to 27.978px by 28px
This is something seriously wrong. What is more is that when I change the rectangle properties to a perfect square 28x28px my pixel preview shows this:
Here I decided to use MAKE PIXEL PERFECT and it changed the rectangle value to 27.978px x 28px and then it told me that it is PIXEL PERFECT:
This is definitely not pixel perfect and it should be!!
Similar things happens to lines
EDIT: Installed Illustrator CC 2013
It works perfectly I have a perfect square and a perfect diagonal line.
This is then some kind of bug with the newest version of Illustrator
I did uncheck Use Preview Bounds but quitting and re-opening illustrator fixed my problem with a box, but still when I rotate this box or create a diagonal line I have uneven numbers in my transform box.
I did a little experiment. I have created a box and a diagonal line in Illustrator CC 2018
then another box and diagonal line in Illustrator 2013
The outcomes look identical, however in CC 2018 the numbers in transform box are crazy and uneven, and in CC 2013, both box and line are even numbers.
In case I did not make my problem very clear here it is outlined again:
I am not able to change the value of transform box into any even/whole number. Every single time i put an even number there it changes into a weird , not whole number.
I just installed Illustrator CC 2015 and it also does not allow me to change values of transform box into an even number.
Installed Illustrator CC 2013 and pasted there this icon I made in CC 2015 with a globe. In CC 2015 ( Picture below) transform box displays 44px x 44.001 px - And I am not able to change it.
After pasting the same icon to CC 2013 transform box displayed again a weird number but it did allow me to change it!!
In Illustrator 2013 I am able to input any number into transform box and it works!
Now some of you might tell me to create my icons in even number size in the first place so I do not have to change it. BUT THIS IS EXACTLY WHAT I AM DOING.
Illustrator changes the size of the icon into a weird number right after I will rotate it or use a pathfinder.
https://forums.adobe.com/people/Test+Screen+Name wrote
The person who wrote the article did not expect 29.999 instead of 30. Doesn’t mean the resulting raster will be wrong. You are trying to prove the software is wrong by quoting how-to advice, that doesnt fly. I am concerned about the larger errors.
Again, I am creating a vector icon, why on earth would I need a raster? I need it on the website as SVG so a vector. And just to show you how important are those numbers. Here is a screenshot of two vector icons.
The first icon on the left was made in Illustrator CC 2018. The values in the transform box of that icon are not whole and not even.
On the right we have the same icon altered in Illustrator CC 2014. The values in the transform box are whole and even.
The first icon saved as svg and inserted into a website looks blurry and pixelated. The second one inserted into a website is perfectly sharp and pixel perfect.
Can you see a difference now?
LEFT: Illustrator CC 2018 RIGHT: illustrator CC 2014 - whole and even numbers
not whole and not even numbers
Bigger version:
In Illustrator CC 2014 I am able to change the values of transform box and in CC 2018 I am not able to change it. As you can see the finished icon (CC 2018) does not look clean and sharp as the other icon made in CC 2014. I am not able to create nice and clean vectors in CC 2018 if this is not a bug then what is?
I am going to use Illustrator CC 2014 which does not have this transform box bug.
But I would like this to be reported as a bug, because it is a bug!!
Hi!
I've the same problem that you Jolievin, when diagonals lines I can't change the transform box into even numbers. Have you found any solutions for that apart of use an older version of Illustrator?
Many thanks 
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