PDF to DWG scanned pdf free https://www.zamzar.com/convert/pdf-to-dwg/

This one worked good for raster scanned file. 

https://www.zamzar.com/convert/pdf-to-dwg/

Vector PDF can be imported directly into AutoCAD with PDFimport.

PFD converters

I like "Any PDF to DWG Converter" it seems simple and is the exact same output as "Aide PDF to DWG Converter" Also the EUA is good. one computer with many users is ok.

Back2cad

AutoCAD "Another installation is already in progress. Wait until it completes and try again.

Killed "AutoDESK Installer" in Task Manager. There were several running.

Navisworks Grid lines and text showing in green.

 Navisworks Gridlines and text showing in green.

Turn off show grid

View > Show Grid

press Ctrl Windows Shift B to reset the graphics card calibration. Screen is black.

 

• Press Ctrl Windows Shift B to reset graphics card calibration

Bluebeam 403 FORBIDDEN error clicking hyperlinks.

 

• Open BlueBeam  Preferences by Review > Preferences or CRTL-K
  
  Bluebeam 2018
  Windows tab > WebTab > Uncheck Open PDF Hyperlinks in Webtabs.
  

SIMPLIFY INVENTOR OR STEP .STP FILE

SIMPLIFY INVENTOR OR STEP .STP FILE
Need an .IAM (Assembly) file to run the ShrinkWraper. Use ShrinkWrapper to remove holes and objects less than a certain size. Manually delete and unneeded objects in AutoCAD.

Inventor:

Open IPT file and - File > Export > Cad Format >  STP
Open new Assembly - File > New > Assembly
Assembly > Place from Content Center > Place Imported Cad file. Import STP file into assemble file.
Shrinkwrap options -
  Components - Level of detail to all “Content center and remove parts be size”.
  Features - remove all holes fillets chamfers pockets

 (entget(car(nentsel))) AutoCAD Lisp to list entities .