How to bulk convert PNG to JPG

[cutefish.ae]

Hi everyone, I'm a beginer developer who wants to make a tool to convert PNG to JPG and JPG to PNG formats, the reason I want to make these tools is because I want to make it easier for after effects users under the CC2019 version, who get the following error like in bellow
im using windows batch

Can someone teach me, and sorry for bad english

[cday]

You have used Tools > Batch convert... already, or not?

[cutefish.ae]

I forgot to say, soo this error is happening if you try to import photo that have an bad footer
i already search how to fix it but it takes a lot of time

according to the method that I have seen on YouTube, photos that cannot be imported into after effects must be edited in mspaint, then you can import it to after effect, but thats takes a lot time for fixing more than one photo

[cutefish.ae]

You have used Tools > Batch convert... already, or not?

Not, because i want to convert more than one file :')

[cday]

So you have many images that After Effects CC 2019 can not open?

I forgot to say, that this error is happening if you try to import photos that have an bad footer
i already search how to fix it but it takes a lot of time

according to the method that I have seen on YouTube, photos that cannot be imported into after effects must be edited in mspaint, then you can import it to after effect, but that takes a lot time for fixing more than one photo.

Are you able to upload an example image that Pierre, the developer of xnview software, can examine?

And are you able to summarise the method that can be used in MS Paint to correct the file defect, or identify the defect?

[cutefish.ae]

So you have many images that After Effects CC 2019 can not open?

I forgot to say, that this error is happening if you try to import photos that have an bad footer
i already search how to fix it but it takes a lot of time

according to the method that I have seen on YouTube, photos that cannot be imported into after effects must be edited in mspaint, then you can import it to after effect, but that takes a lot time for fixing more than one photo.

Are you able to upload an example image that Pierre, the developer of xnview software, can examine?

And are you able to summarise the method that can be used in MS Paint to correct the file defect, or identify the defect?

No i cant find it how

[cday]

Are you able to upload an example image that Pierre, the developer of xnview software, can examine?

A download link to where you posted your image above aftereffecterror.png?

And are you able to summarise the method that can be used in MS Paint to correct the file defect, or identify the defect?

No i cant find it how

A link to that webpage?

[cutefish.ae]

Are you able to upload an example image that Pierre, the developer of xnview software, can examine?

A download link to where you posted your image above aftereffecterror.png?

And are you able to summarise the method that can be used in MS Paint to correct the file defect, or identify the defect?

No i cant find it how

A link to that webpage?

Sorry for interrupting, I already understand how to bulk convert
So the first time i tried

Code: Select all

"tools\nconvert" -out png input\ *.jpg

but it doesnt work

soo i try

Code: Select all

"tools\nconvert" -out png "input\*jpg" *.jpg

and it workssss. i already try this menthod in imagemagick but it doesn work, so i try to search alternative for imagemagick and found this software
it help me a lot, and more easier for beginer

[cday]

You are using NConvert [now?] but you posted in XnView MP...

Sorry for interrupting, I already understand how to bulk convert
So the first time i tried

Code: Select all

"tools\nconvert" -out png input\ *.jpg

but it doesn't work

You have a space in input\ *.jpg which is probably the reason...

So I try:

Code: Select all

"tools\nconvert" -out png "input\*jpg" *.jpg

and it workssss.

I think the following code should be sufficient:

Code: Select all

"tools\nconvert" -out png "input\*jpg"

I already try this method in imagemagick but it doesn't work, so i try to search alternative for imagemagick and found this software
it help me a lot, and more easier for beginner

I think that NConvert is certainly easier to understand...