가이드
이미지를 망치지 않고 압축하는 방법
파일 용량은 줄이고 시각 품질은 유지하는 실무형 이미지 압축 방법입니다.
압축의 목적은 속도 개선이지 화질 저하가 아닙니다. 리사이즈 후 품질 범위를 비교하면 초보자도 안정적으로 결과를 맞출 수 있습니다.
Resize before you compress
If the page shows an image at 1000px width, uploading a 3000px file wastes bandwidth.
Set dimensions close to real display size first, then compress for better results with fewer artifacts.
Choose format by image type
Use JPG for photos, PNG for graphics that need clean edges or transparency, and WebP when you want a strong size-to-quality balance.
Using the wrong format forces heavier compression and hurts quality faster.
Test a small quality range
Instead of guessing one value, compare nearby settings such as 80, 70, and 60.
Small drops often save a lot of size while staying visually acceptable.
- Check screenshot text readability.
- Look at faces and edges at normal zoom.
- Prefer slightly smaller files on mobile-first pages.
Review in real page context
Do not judge only from editor previews at extreme zoom.
Open your draft page on desktop and mobile to confirm the image still supports the content.
Keep one clean source file
Repeatedly compressing the same lossy file can stack artifacts.
Store one high-quality original and export fresh compressed versions for upload.
When this guide helps
- You need lighter images but still want a clean professional look.
- Your screenshots become blurry after compression.
- You want a repeatable quality check before upload.
- You need practical settings for mixed image types.
Aim for clear enough, not perfect
A practical quality target beats guesswork. Keep source files safe, export a web version, and publish the smallest version that still looks clear in context.