---
title: Background Images and Videos
description: "Backgrounds do more for a presentation than almost anything else you can change. Four things matter: resolution, contrast, composition, and focus. ## Size and resolution Use images of at least 1280 x 720 pixels at 72ppi or higher. Anything smaller…"
url: "https://idecide.com/ja/knowledge/myidecide-builder/tips-tricks-background-images/"
updated: "2026-09-15"
category: myiDecide Builder 2.0
---

# Background Images and Videos

Backgrounds do more for a presentation than almost anything else you can change. Four things matter: resolution, contrast, composition, and focus.

## Size and resolution

Use images of at least 1280 x 720 pixels at 72ppi or higher. Anything smaller or lower will look blurry once it fills the screen.

![](https://idecide.com/wp-content/uploads/2023/05/Builder-High-Rez.png)![](https://idecide.com/wp-content/uploads/2023/05/Builder-Low-Rez.png)

## Contrast

Pick a background that contrasts with your text. If the text and the background are close in shade or tone, it is hard on the eyes. The greater the contrast, the better.

![](https://idecide.com/wp-content/uploads/2023/05/Builder-No-Contrast.png)![](https://idecide.com/wp-content/uploads/2023/05/Builder-High-Contrast.png)

## Composition

Text is far easier to read over empty space in a photo than over the subject. Choose images with room in them.

![](https://idecide.com/wp-content/uploads/2023/05/Builder-Poor-Composition.png)![](https://idecide.com/wp-content/uploads/2023/05/Builder-Good-Composition.png)

## Focus

If a slide carries a lot of text, or your message needs to be front and center, use a photo with a soft focus or a slight blur. A busy background pulls attention away from your point.

![](https://idecide.com/wp-content/uploads/2023/05/Builder-Busy-Background.png)![](https://idecide.com/wp-content/uploads/2023/05/Builder-Blurred-Background.png)

## Background videos

Movement holds attention. Anywhere you have text on screen for a while, or button choices waiting for the viewer to pick, a background video keeps the slide alive.

If your video is too large to upload, compress it first. freeconvert.com is one free option.

**Tip:** Our stock library has thousands of free images and videos built in, so you do not have to source or license anything separately. Search it from [The Toolbar](/knowledge/myidecide-builder/how-to-edit-slides/) under Add Element.