Sheet metal & Air Conditioning Contractors’ National Association


About SMACNA Secure PDF Files

  • SMACNA technical manuals purchased in PDF/CD formats are password protected and secured using FileOpen.

  • Secure publications cannot be transferred to other computers, including company networks.

  • You are limited to printing only one copy of the manual.

  • If you try to open a PDF/CD version of the manual on a different computer, you will not be successful.

  • Adobe Acrobat/Reader is required to view SMACNA Manuals.


  •  Once your purchase is complete, you will receive an email with your password and download instructions

  • If you do not receive your password, please contact SMACNA directly at or call 703-803-2980.

How to Open SMACNA Secure PDF Files

Install the FileOpen Plugin

  •  Download and install the plugin on your PC or Mac at 

  •  Click OK to download the FileOpen Plugin installer and follow the prompts.

Enter your Username and Password

  • Note your username and password from your purchase confirmation email.* 

  • When you open for the first time, a popup window will appear in Adobe Reader or Acrobat.  Enter your username and password.

* Your Username is your email address. Your password is the code listed on the purchase confirmation screen and in the email you receive. The code is an 8-character random combination of letters and/or numbers.

If you have not received your password, please contact SMACNA at or call 703-803-2980.

View the Publication

You can now view SMACNA protected PDF files. Be aware that your use of files may be restricted depending on the security controls that have been applied to the document.