为什么选择我们的 PNG → JPG 转换器？
我们的轻量级浏览器工具在您的设备上本地将 PNG 转换为 JPG。它保护您的文件隐私、高效处理批量任务，并提供简单的质量控制，以便在图像细节与文件大小之间取得平衡。
什么是此工具？
一个客户端（浏览器内）PNG→JPG 转换器，可在浏览器中重新编码图像而无需上传到服务器。非常适合准备网页图片或减小文件大小。
如何将 PNG 转换为 JPG
- 选择或将 PNG 文件拖放到上传区域。
- 移除不想转换的预览缩略图。
- 调整 JPG 质量滑块以平衡文件大小和视觉保真度。
- 点击「转换」并下载生成的 JPG 文件。
为什么使用此工具？
- 保护隐私 — 无需上传或在服务器上存储文件。
- 减小文件大小以便在网页或 Email 中使用。
- 界面简单可靠，便于快速转换。
主要功能
- 客户端转换 — 您的图像不会离开浏览器。
- 批量处理以同时转换多张图片。
- 可调节的质量滑块以控制输出大小与细节。
- 使用现代浏览器 API 提供快速、流畅的编码性能。
Understanding Your Conversion Options
Converting All PDF Pages
When you want every page as an image, simply leave the page range field blank. Our tool will process the entire document and generate sequentially numbered images (Page1.jpg, Page2.jpg, etc.) while preserving your original structure.
Converting Specific Page Ranges
If you only need certain pages, use the range selector. Examples:
• "1-5" = Converts pages from 1st to 5th page
• "1, 3, 7" = Extract only pages 1, 3, and 7
• "1-3, 7-9" = Converts pages from 1 to 3 and from 7 to 9
• "5-" = Extract pages from 5th to the last page
This level of control saves time and ensures you get exactly what you need.
Choosing the Right DPI (Image Resolution)
DPI (dots per inch) controls the clarity of your converted JPG images. Higher DPI means sharper images but larger file sizes. This tool is support the various types of DPI values for convert PDF to JPG. Use these common guidelines:
• "72 – 96 DPI" = Ideal for web use, previews, and screen viewing
• "150 DPI" = Good for basic printing and readable documents
• "180 - 200 DPI" = Clear, balanced quality for standard printing
• "250 - 300 DPI" = High-detail quality for professional printing
Selecting the right DPI helps you balance image sharpness and file size based on your needs.
Choosing the Right Format
JPG is ideal for photographs and general use with adjustable compression. PNG offers lossless quality that is perfect for text and graphics. WEBP provides modern compression with smaller file sizes and excellent visual quality. All three formats preserve the key visual details of your original PDF.