JPEG Image Compression problem

[Altaf Raza]

Hi

While converting JPEG to PNG i'm facing a problem.On converting
JPEG images of sizes (300 to 900 KB) into PNG the nconvert expands its sizes & resolution(3 to 5 MB) & Converting JPEG of Size(more than 3 MB) nconvert compressed its size (in KB).

Is there any option for JPEG(upto 1 MB of size) should remains its original size(i.e. doesnt expands) after conversion into PNG.
thnx

[xnview]

While converting JPEG to PNG i'm facing a problem.On converting
JPEG images of sizes (300 to 900 KB) into PNG the nconvert expands its sizes & resolution(3 to 5 MB) & Converting JPEG of Size(more than 3 MB) nconvert compressed its size (in KB).

Is there any option for JPEG(upto 1 MB of size) should remains its original size(i.e. doesnt expands) after conversion into PNG.

You can try different level of compression, but jpeg is lossy and png lossless

[thomas59310]

Ok, but How to change compression level with nconvert?

While converting JPEG to PNG i'm facing a problem.On converting
JPEG images of sizes (300 to 900 KB) into PNG the nconvert expands its sizes & resolution(3 to 5 MB) & Converting JPEG of Size(more than 3 MB) nconvert compressed its size (in KB).

Is there any option for JPEG(upto 1 MB of size) should remains its original size(i.e. doesnt expands) after conversion into PNG.

You can try different level of compression, but jpeg is lossy and png lossless

[xnview]

Ok, but How to change compression level with nconvert?

-q

[p43k]

Ok, but How to change compression level with nconvert?

-q

thank you.