Submission Instructions

Elementary Division Only

Deadline: Thursday, April 8th

11:59 PM (PDT)

You will submit your poster and all paperwork as one PDF file. You will also submit a separate image (PNG file) of your poster for the Showcase Event.

For groups, only ONE group member needs to submit the project.


You may start with a traditional (2-D) poster created with images and text glued to a display board OR create a digital poster from the start using design software. Whichever method you use, your final poster must be submitted as a PDF file.

Please be sure to follow all of the rules for the poster category.


Preparing a Traditional Poster for NHD-CA

If you created a traditional poster, you must do the following:

  • Ask your teacher or a parent to help you take a high resolution photo of your poster.

    • We recommend doing this outside to reduce/eliminate glare.

    • Be sure to get close enough to include the entire poster in the photo.

  • Open the JPG photo and save or export it twice. Once as a PDF and then as a PNG.

  • Check to make sure that the text and images on your poster are readable when enlarged on a computer.

Preparing a Digital Poster for NHD-CA

You may create your digital poster using ANY program you prefer. Examples: Google Draw, Google Slides*, Word, Canva, Indesign.


*We only accept a one page PDF file that conforms to the size requirement listed above. Multi-page PDF's of slides are NOT accepted.

Digital Poster Rules

The poster entry must conform to these rules and guidelines:  

  1. Your poster must be one page.

  2. The layout dimensions must be no larger than 30” x 40”.

  3. The font size for headings, subheadings, text, and quotes must be 14 point font or larger.

  4. The font size for credits must be 10 point font
    or larger.

  5. Your poster must conform to all NHD-CA Poster rules.

Prepare your Poster & Written Materials

Preparing your poster for submission is a three-step process.


Combine your final poster and written materials as one combined PDF file in this order:

  1. Title Page

  2. Process Paper

  3. Annotated Bibliography

  4. Poster

How to Combine Your PDF’s

Use the free software or to merge your PDFs into one. 


Save a PNG file of only your poster for the virtual showcase.


Naming your files. Save your combined PDF file and the PNG file with the following naming format:



       [separate last names by an underscore]




Submit your files using the button below.