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Solid Hatch problem; Autocad 2011 dwg file to pdf, Hatch areas showing lines

Posted on 2010-09-22
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Last Modified: 2013-12-04
When viewing .PDF file in Adobe Acrobat Pro 9.3.4, Shaded/Hatch areas show unwanted lines. PDF. created/saved as from Autocad 2011 .dwg file , floor plan.
Lines show when viewing and when printed, horizontal and diagonal lines?
What can be done to resolve this?
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Question by:RickIJ
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Expert Comment

by:captain
ID: 33738009
Hi

Odd one. I have seen that the option to switch of 'Object Level compression' removes the artifacts.

See screenshot for setting, this is in Adobe Distiller > Settings > Edit PDF Settings.

Simply recreate your PDF after making the change.

hth
capt.


Distsett.jpg
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Author Comment

by:RickIJ
ID: 33738706
Thanks, I will have my users try this.
I also found that opening the pdf in Photoshop and saving the pdf from Photoshop also got rid of the lines in the "hatch/shaded" areas, but reduced the definition/clarity from the original. I was also informed that 1 of the users did not have the problem with lines in the hatch area, and I am on another quest of find out application specifics on that machine compare to the users with issues. Same Autocad version 2011, Adobe Acrobat versions differ, 9.3.3 vs 9.3.4. The older version works, newer doesn't.
Also there may be settings in Autocad that differ, but I don't enough of Autocad yet to know.
High level; Architect creates Floor plan in Autocad and saves as PDF for marketing, that manipulates the pdf in Adobe Illustrator for presentations and brochures, so the file needs to be clean both electronically and printed hard copyl
Thanks, again, will be back to distribute points, if distiller works better than photoshop
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captain earned 168 total points
ID: 33738858
Photoshop will rasterize parts or all of the PDF so it is not the right tool for your objective. Distiller integrates with Acrobat and is responsible for PDF creation so this is most likely your problem.
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by:victorus
victorus earned 166 total points
ID: 33739002
This is a BUG in AutoCAD and it happens even in earlier versions. It has to do with the PDF driver. SOMETIMES you can correct this problem by assigning a CTB file of NONE and use the PDF driver that is part of the AutoCAD drivers, and not a third party like PDF995.
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Author Comment

by:RickIJ
ID: 33739387
Thanks, CaptR and Vict on the points of clarification, on Photoshop vs Distiller, and Autocad bug.
I am not familiar with Autocad, so can you give me a bit more info on where and how to assign a CTB file or PDF driver usage in Autocad?
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Author Comment

by:RickIJ
ID: 33739750
Here's another little piece:
UserA: Can create a PDF in Autocad 2011 and the Hatch areas do not display any lines.
UserB: Can open the DWG file on their Autocad 2011 and the PDF userB creates from the dwg has lines in the Hatch area. Opening UserA's PDF hatch has lines.
UserC: (Marketing) See lines in the Hatch area of the PDF created by UserA, using Adobe Acrobat, or Illustrator. She uses Illustrator to create her marketing material from the PDF.
So UserA's configuration works fine just on UserA's system.
Any ideas what areas to check on UserA to replicate on UserB's system? Then I have UserC's Adobe setup.
They have a couple viable workarounds, my A-retentive nature would like a resolution vs workaround.
All users are running Win7 64bit, Adobe CS4, Autocad 2011, except UserC (doesn't require Autocad).
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Assisted Solution

by:gikkel
gikkel earned 166 total points
ID: 33942553
Since you actually have acrobat installed on the user's machine, it will create an additional driver that Autodesk can use.  However, Autocad already has it's own pdf plotter - DWG to PDF.  I have found that using DWG to PDF can cause some issues, especially with text, but creates smaller files.  Try using both.
It sounds like something is happening with user a's graphics card if they're are lines but can't actually see them in both autocad acrobat. Update the graphics card driver and try again.  
Other things to try:
3dconfig -> manual tune -> emulate unsupported hardware effects while plotting (though this likely won't correct your issue).
Reinstall autocad (fresh/clean)
Reinstall .net framework
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Expert Comment

by:gikkel
ID: 33942580
*they're should be there - I hate grammatical errors. :)
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Expert Comment

by:victorus
ID: 33944508
Sorry that I am getting back so late with a reply. I guess that I missed a notification.
You choose a CTB file when you print - it is the pen table name on the right top side of the plot dialog box. There should be a few names, including NONE.

AutoCAD comes with its own PDF printer driver. You should see that option in the same dialog box when you choose which printer to use. You may already be using this one.
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Expert Comment

by:lynxhelpdesk
ID: 33952948
Thanks all that submitted possible resolutions, I will forward them on to the end users and support staff.
My contract has ended, and off to another gig
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by:James Murrell
ID: 36413397
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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