Editing from Lightroom to Photoshop: Format

Indeed, and with that I think we've covered the two major problems here.

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@SarahBauer wrote:

So I've considered whether I should export all my photos (originally RAWs) from lightroom to jpg, then open them in photoshop as jpgs to do the final touches before resaving from photoshop. I feel like the process might also be faster? It's painfully slow opening them all from lightroom and back again. 

 

But I'm afraid photoshop can't edit .jpgs as well as the .tif files lightroom transfers them to... is this true? Or is the same? I don't really understand .tif files...

The purpose of the jpg format is to create small files that can be attached to an email or posted on the Internet.

The small file size is achieved by using destructive (lossy) compression, and editing and saving a jpg will result in reduced quality. Saving a jpg several times can ruin the image.

If you want to export from LR and edit the exported file in PS, export as 16-bit Tiff, that can withstand heavy editing without any quality loss. You can optionally use ZIP compression when saving, which is also lossless.

You may find this article helpful: File formats

Stop right there. You're going about this the wrong way. Put your applications back on the system drive! You'll have nothing but problems if you continue this way.

This is not where you save disk space. The installation files only take a couple of GB, nothing in the bigger picture. And a lot of the installation will go to your system drive regardless! Much if it will be under your user account, and you can't move that.

Look elsewhere to save space. I can guarantee you there will be a lot you can move or just delete. Start with the OS disk cleanup.

Here's a good rule of thumb: your operating system and a "standard" range of applications should not take up much more than 100 GB or so. If it does, start cleaning up. The user account tends to collect and accumulate various stuff from all your applications, and it is usually not removed automatically on the assumption you "might" need it in the future. But if you find folders from old applications you no longer have, delete them.

I do occasional cleanups on my system, and sometimes I can remove 30 or 40 GB in one go. That's where you save space!

I'm on Windows myself, but there should be utilities for Mac that show you exactly what's filling up your drives and exactly where it is. Here's a screenshot from the Windows WinDirStat, just to show you how it can look. I can't recall what the Mac equivalent is called.