Cant See .ctb files: CONVERTPSTYLES

When opening a drawing that is from someone else, they may have set the drawing to plot/print using a “Style” that has a file extension of “.stb” instead of a “.ctb”

What is a “.stb”?
The settings that define how a drawing looks when it is printed can be defined by either how it handles each color in the drawing (.ctb = Color Dependent Plot Style) or by wrapping up many of the various plot settings as a “Style” (.stb = Named Plot Style).


When you come across a drawing that has plot styles (,stb) and not your usual .ctb files simply use the command CONVERTPSTYLES <enter>


It will notify that it will no longer be looking for .ctb files

Click OK



Just to verify that it worked, look in the command line…



Now the drawing should be able to see your .ctb files when plotting.


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About AutoCAD Tips

As weird as it sounds, AutoCAD is a hobby for me. But I am fortunate enough to have a career doing my hobby. I work for a large engineering firm supporting CAD users in various disciplines. My dream job would be to work for a company like Autodesk or Disney's Imagineering where inspiring others and using innovative approaches and software are adding value to projects and bringing design in all areas up to a new level. This blog serves as a repository or knowledge base for myself so that I can reference tips & tricks that I have learned and also refer others to it as well. I hope that this blog helps you learn at least one tip to make your drafting experience better.
This entry was posted in BASICS, Printing - Plotting. Bookmark the permalink.

5 Responses to Cant See .ctb files: CONVERTPSTYLES

  1. Matthew says:

    This is a great post! I have a coworker that we had to use this for.

  2. William T. Guevremont says:

    I visited a couple of other sites and their solutions were crazy cumbersome! Your solution and the way you presented it was absolutely amazing GOOD!! I have a project due tomorrow and was stressed beyond belief until I tried your awesome easy solution!!!! THANKS.

  3. Jeff Brannon says:

    Yes, this tip works great for one drawing. Since we upgraded to 2014 almost all of our drawings come in looking for .stb files instead of our standard .ctb files. Is there any way to do this globally so every drawing is looking for our standard .ctb files? Thanks!

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