enter image description heresome times when we want to introduce two or more signs on top of a letter (for example tilde and bar signs over the letter u) they are entangled to each other (especially when we convert it to PDF) which makes it hard to recognize the signs in the final PDF print. For example in the the following formula:

\tilde{\bar{u}}_i

when I convert the final output into PDF, the tilde and bar are not recognizable in the printed PDF.This is bothering me and I would appreciate any help.

  • Looks fine to me. May be you're using some unusual fonts/packages? Then show a complete minimal example which doesn't show up properly. – Sergei Golovan Jul 3 '17 at 10:51
  • They are showing fine when I use the GS view. But when I convert them to PDF, then they becomes nasty. – saeedi Jul 3 '17 at 10:55
  • Can I attach a photo to show it? – saeedi Jul 3 '17 at 10:56
  • 2
    You can attach an image to your question. But it'd be better if you show the code (and describe your workflow) which causes the entangling. – Sergei Golovan Jul 3 '17 at 11:02
  • How are you compiling? Sounds like you use some intermediate file and don't directly compile to pdf? This is what I get from your code compiled with pdflatex: i.stack.imgur.com/lL0Gy.png – samcarter Jul 3 '17 at 11:25
up vote 0 down vote accepted

I think I could solve the problem

There was a package used in the latex, I deactivated it and now the problem is gone. This is what I have deactivated:

\usepackage{mathptmx}

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