P:Need a check box in Slideshow that automatically resizes the images to fit the screen in Play mode

Many similar posts from the past several years were just merged into one thread in the Ideas section to make it more likely Adobe might pay attention. The volume of additional replies is likely to be very low. If you stop following this thread, you might miss an update from Adobe.  But you click Unfollow at the bottom of the first post if you want.

Hallo, ich habe auf meine Frage viele tolle Antworten erhalten. Danke! Ich möchte nun keine weiteren mails mehr erhalten. Wie beende ich das

Workaround for the specific case of images which don't fill the slideshow resolution because they have been heavily cropped down for composition / subject reasons - to concentrate on a bird that could not fill the framing as-shot, or whatever.  

Such images (or better, a virtual copy thereof) can have their crop boundary increased to show more of the original image's extent, until the needed cropped pixel dimensions are reached. Those numbers can be displayed on-screen e.g. in an info overlay, to help in doing this.

Then within this larger crop boundary, which now includes the needed number of pixels but shows more of the photo than you want: something close to the desired composition can be reinstated using the Scaling slider within the Transform panel. This adjustment in effect zooms (resamples) the original picture information on the fly, equivalent to what would have otherwise needed an export to do. It ranges from 50% to 150% sizing.

It won't be ideal, but it may do the trick - and without exporting and reimporting any intermediate image copy

hth

Moderators, @Rikk Flohr: Photography, please merge with this Idea:

https://community.adobe.com/t5/lightroom-classic-ideas/p-need-a-check-box-in-slideshow-that-automatically-resizes-the-images-to-fit-the-screen-in-play-mode/idi-p/12727824

Es heißt: "Klicke auf die Schaltfläche Abspielen, um die Diashow im Vollbildmodus wiederzugeben." Leider sind trotzdem Bilder dazwischen, die sehr klein wiedergegeben werden.

I'm attempting to export a slideshow of about 100 photos, both landscape and portrait. It sets up properly in the program, but it won't export with all of the images at full screen. Even some images that are 1920x1080 aren't scaled to full screen. This seems like it's been an issue for people on here for years but there's no solution. Any help?

Agree!

There is a checkbox to Zoom Fill- but it doesn't with small pixel sized images.

Be good IF it worked!

Thanks Rob.  Would be a lot easier if there was a "Check Box" that would automatically zoom to Fit in Slideshow! 🙂

All 'Resizing' functions in Lightroom will not 'resize' to a specific ratio- That is a job for the Crop Tool- before you export.

The Resize in the Export dialog will only re-size images to 'fit' within the boundary of the Dimensions stated in the Export dialog.

So if you want all your images to 'FILL' a screen 1920 x 1080px, then you could-

1)  Create a new Collection with all your SS images. Hint: Create the Collection with VIRTUAL COPIES!

2)  Crop all the Collection VC images to the 'Ratio' required (16:9 for 1920x1080px). Do one-by-one where YOU check the crop, or [Auto-Sync] and let LrC crop all to 16:9. **Then preview each Collection image to check the crops were suitable to YOU. (Using VCs prevents you affecting your 'original' files!)

3) Export the Collection images with the 'Resize' dimensions required in the Export dialog. (eg. w1920 x h1080) and Check to Include in the Catalog! (so then you do not need to import the exports.)

4) Use the Exported files in the SS.

{ 5) Delete the VCs and Collection later if not needed again. }

It all sounds complicated but in reality, once you understand the method, you will realize it is relatively simple. A Collection of VCs is 'easy'. A batch crop is 'easy'. An Export using a Preset is 'easy'. Selection for the Slideshow module is 'very easy'. 🙂

Rob, thank you for this option.  Is there a way in LR to maintain the image ratio when resizing?  For instance, in PS I was able to set the Height and PS automatically reset the Width based upon the original ratio of Height to Width.  I did not see the same functionality in LR.  This is important since many of my images are of different H to W sizes. 

I also found that slideshow will down-size, so I make the image height slighly larger than needed and it down-sizes properly to fit.