增加图像大小 to 5MB
在线增加照片的 KB 大小。安全地将 JPEG 和 PNG 照片扩展到精确的最小 KB 限制。
Official Guidelines Compliance
How to Compress your file to 5MB
有时门户网站会拒绝太小的文件（例如低于20KB）。我们的工具通过安全地将JPEG和PNG文件扩充到精确的最小尺寸限制，且不改变视觉质量。 Large files can cause upload failures on strict portals or slow down email delivery. Our advanced local processing engine guarantees that your file will be shrunk to exactly 5MB.
How to Use 增加图像大小 to 5MB
Follow these simple steps to safely compress your file to 5MB.
1
上传图片 for 5MB
选择需要增大文件大小的图片。
2
指定最小限制
设置您需要达到的最小尺寸限制 (KB)。 Increase 5MB.
3
下载文件
保存文件，现已准备好上传到您的官方门户。
Frequently Asked Questions about 5MB
Answers to common questions about compressing to 5MB.
这会改变我的图像分辨率吗？
- 不会，物理尺寸（像素）保持不变。
文件大小是如何增加的？
- 我们通过减少压缩或注入无害的元数据填充。
这种方式处理的文件会被门户接受吗？
- 是的，门户网站只检查物理文件大小。
Frequently Asked Questions about 5MB?
- Answers to common questions about compressing to 5MB.
What exactly does the 5MB file size limit mean?
- The 5MB size limit requires your document or photo to be strictly smaller than 5,242,880 bytes on disk. Government portals and application databases will automatically reject any upload that exceeds this exact byte capacity.
Can I compress a very large file (e.g. 5MB) down to 5MB?
- Yes. Depending on the original file size, our local processing engine will apply aggressive JPEG quantization and iterative canvas scaling to mathematically ensure the final output file is under the 5MB target limit.