png

.png — Portable Network Graphics

PNG Development Group · 1996

开发者

PNG Development Group

分类

图片

MIME类型

image/png

首次发布

1996

开放格式

是

文件签名

89 50 4E 47 (‰PNG)

什么是.png文件？

PNG (Portable Network Graphics) is a lossless image format designed as an improved, non-patented replacement for GIF. It supports full-color images with transparency (alpha channel), making it perfect for logos, icons, screenshots, and web graphics. Unlike JPEG, PNG preserves every pixel exactly, so images never lose quality when saved multiple times. The tradeoff is larger file sizes compared to JPEG for photographs.

可以打开.png文件的程序

平台	程序
Windows	Windows Photos	免费
	Adobe Photoshop	付费
	GIMP	免费
	Paint.NET	免费
macOS	Preview	免费
	Adobe Photoshop	付费

.png文件的常见问题

⚠️ Cannot open .png file

Install one of the recommended programs listed above. For a free option, try the first free program in the list.

⚠️ .png file is corrupted

Try re-downloading the file. If the file was transferred, ensure the transfer completed without errors.

常见问题

What program opens .png files?▼

.png files can be opened with several programs. Windows Photos is one of the most popular choices.

Is .png a safe file format?▼

Generally yes, .png files are safe to open with appropriate software.

Can I convert .png to another format?▼

Yes, there are many online and offline tools available to convert .png files. Check the conversion section above for specific methods.

技术详情

Portable Network Graphics files use the image/png MIME type and were first introduced in 1996 by PNG Development Group. The file can be identified by its signature: 89 50 4E 47 (‰PNG).

你知道吗？

Portable Network Graphics was first released in 1996 by PNG Development Group

安全信息

.png files are generally safe to open. However, always ensure your software is up to date to protect against potential vulnerabilities.