图片压缩指南

关于图片压缩、格式选择以及让网站更快的实用建议。

如何在不损失画质的情况下压缩图片

更小的图片和好看的图片并不矛盾。下面教你在保持照片清晰的同时大幅减小体积。

JPEG 无处不在，WebP 是现代默认选项，AVIF 体积最小。下面教你如何在三者间取舍。

没有唯一的最佳格式，只有最适合每类图片的格式。下面教你快速选择。

图片往往是页面中最重的部分。优化它们是让网站更快的最快途径。

Most videos are far larger than they need to be. Here is how to cut the file size dramatically while keeping the footage sharp.

PDF weight almost always comes from images, not text. Here is how to shrink a PDF while keeping it sharp and private.

A bloated deck is almost always caused by full-resolution images. Here is how to shrink a PPTX without changing how it looks.

Offline compression is faster, more private, and works without internet. Here is what matters when choosing one.

Email caps attachments around 25MB. Here is how to get your video under the limit so it actually sends.

When you compress a file online, it usually leaves your device. Here is why that matters and how local tools avoid it.

H.265 makes smaller files, H.264 plays everywhere. Here is how to choose between them when compressing video.

Different files shrink for different reasons. Here is a plain-language guide to how image, video, and PDF compression work.