# PNG to JPG

> Create a JPG with your chosen background color.

[Open tool](https://www.toolcabana.com/zh/png-to-jpg) · [图片与设计](https://www.toolcabana.com/zh/category/images-and-design)

Tool ID: png-to-jpg. Requested language: zh. Description language: en. Complete guide translation: no; untranslated sections use English.

## Overview (en)

PNG to JPG converts a PNG image into a JPEG file. Because JPEG cannot store transparency, transparent pixels are placed on a background color you choose, white by default. A quality setting from 0.1 to 1, defaulting to 0.9, controls compression, and multiple PNG files can be converted into one ZIP.

## Supported tasks (en)

Create a JPG with your chosen background color.

## Steps (en)

1. Choose a source file. If the tool accepts multiple files, arrange them in the order you want.
2. Set transparency background, quality.
3. Run png to jpg, review the output, then use the available copy or download controls.

## Settings

- Transparency background (en; key: background; type: color)
- Quality (en; key: quality; type: range); minimum: 0.1; maximum: 1

## Limitations (en)

Images are limited to 32 megapixels and 16,000 pixels per side. Most operations accept one source; supported batch operations produce a ZIP archive.

## Privacy and connections (en)

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

## Questions (en)

### Why does my transparent PNG get a white background as a JPG?

JPEG has no alpha channel, so transparent areas have to be filled with a solid color. The tool uses the Transparency background setting, which is white by default; choose another color before converting.

### What quality setting should I use for PNG to JPG?

The default is 0.9. Lower values down to 0.1 produce smaller files with more visible compression artifacts, and 1 gives the highest quality. The output size in KB is shown after each conversion so you can compare settings.

### Does PNG to JPG change the image dimensions?

No. The JPG keeps the same width and height as the source PNG. Only the format, the transparency handling and the compression change, and the result lists the width, height and file size.

### Where is my input processed?

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

### What are the input limits?

Images are limited to 32 megapixels and 16,000 pixels per side. Most operations accept one source; supported batch operations produce a ZIP archive.

## Related tools

- [JPG to PNG](https://www.toolcabana.com/zh/jpg-to-png)
- [WebP to JPG](https://www.toolcabana.com/zh/webp-to-jpg)
- [JPG to WebP](https://www.toolcabana.com/zh/jpg-to-webp)
- [PNG to WebP](https://www.toolcabana.com/zh/png-to-webp)