All files should be optimized as much as possible for quick load time. Here are some options for how to optimize PDFs

1. Acrobat Pro DC:

  1. Open the document in Adobe Acrobat DC 
  2. File > Reduce File Size or Compress PDF
  3. Choose the location to save the file and click Save. Acrobat DC displays a message showing the successful reduction in PDF size.

Visit their support page for more information

2. Online services like PDFCompress to reduce file size.

3. View our article "Optimize PDFs for Mobile Use" in our blog