2 questions about smart object?

[johannes999]

hello,

1-when I want to resize an image in photoshop and save it (with save as) but the changes not saving in photoshop itself so it stays the origin image .  do I have to convert it to smart object before resizzing or that is not needed? I mean when I resize wil image loose pixels?

2-do I have before working with any  images convert it to smart object or it depends on situations?

thanks

[Joely · Accepted solution]

1. How did you try to resize? By going to Image > Image size ? Or just «free transformed» one Part/Layer?

2. No, Smart Objects are not compulsory. But can be helpful in some cases.

…maybe it helps if you share a screen-cast or image with your fellow community?

[c.pfaffenbichler · Accepted solution]

1) If you downsample images you are removing pixels; by converting the Layer to a Smart Object before downsampling the original image is stored in the image and available at full resolution for future transformations. 

[Abambo · Accepted solution]

1) If you downsample images you are removing pixels; by converting the Layer to a Smart Object before downsampling the original image is stored in the image and available at full resolution for future transformations. 

By @c.pfaffenbichler

If you upsample, you are adding pixels. And yes, the original image is still stored in the image. If you convert to black and white, the original stays in colour. Indeed, any operation keeps the underlying smart layer image intact.

[Abambo]

1. Smart objects retain their properties in the smart object. Any modification you do to the host will be local to the host. If you resize the host file, the resizing will stay in the host file. The smart object still has his original file size and properties.

2. You can work in Photoshop very well, without smart objects. It really depends on the kind of operation you do, whether smart objects should be used or not. Smart objects are powerful, but some operations can't be done with them. So in that case you need to render the smart object into a simple layer (mostly, when I want to keep the smart object a smart object, I render a copy of the smart object/layer).

[johannes999]

thanks everyone ,

yes,  By going to Image > Image size.

[Abambo]

Image size and transform, anything goes.

My most usage of smart layers is when I'm applying filters. I love to come back and tweak the parameters later on.

[PECourtejoie · Accepted solution]

Hello, imagine that you have image1.jpeg. If you resample with image size, and save as image2.jpg, image1 will stay intact. (if you do not save it after the operation) There's no need for a smart object in this kind of workflow.

A smart object can only live in a PSD, PSB or TIFF document.

Usually, you convert to SO, in case you need to change the image size, but might need to adjust afterwards: for instance, you create a banner, and have image1 inserted at 33% size, then additional filters are applied on it. You can then change its size to 50% later without having to reimport it, and run it trought all the (smart) filters again.

It has a "cost" in filesize, so, usually, it is done on a case by case basis.

Once an image is converted to SO, so cannot paint on it directly, without editing (opening) the smart object.

see: https://helpx.adobe.com/photoshop/using/create-smart-objects.html

[johannes999]

thanks everyone .