Stamp carousel copy after the slides themselves are keepers

Carousel copy is a stamp, not a generate. add_text_overlay puts captions, titles, or quotes on images that already exist in a slideshow: one overlay auto-expanded across every slide, or N overlays matching N images. The image credits were spent when the slides were made. This pass is how you label keepers. Label a slide you are about to replace_slideshow_slide and the stamp dies with it.

Add text to slideshow images is the job. get_slideshow is how you stop guessing at ids. convert_slideshow_to_video is a later render, and it only carries this type if you set use_edited_images.

Two text tools. One of them is a trap.

create_slideshow_caption_in_image asks an image model to paint type into the picture. Cohesive. Uneditable. If the headline is wrong, you regenerate the slide. Do not chain add_text_overlay on top of that — you will double-print the line.

add_text_overlay is the editable stamp. That is the one you want for claims, prices, and anything legal will rewrite. It still has to wait. Overlay count is either 1 or exactly the number of images. A partial list is not the interface. People "just caption slide one" by stamping a single overlay, and the same line repeats across the set. That is a finished-looking mistake on a draft carousel.

The first step is the pictures. AI slideshow maker and text-to-image are where slides come from. Copy is how a locked set speaks on mute.

Lock the set, then stamp

A slideshow is locked when the images, the order, and the count are the ones you will ship. Until then, fix a slide — replace, remove, reorder — is cheaper than restamping. Replace drops any stale overlay version of that slide. If you captioned first, you caption again.

Do not stamp as a way to review the carousel. You can read the hook in the brief. The overlay is for the export, including the reel pass. If you convert to video before the stamps, you either ship bare slides or you re-render.

estimate_cost if a specific set is unclear. Usually the expensive part already happened at generation. The leak here is rework: new slides, new stamps, new video convert, each time the board changes.

A sequence that does not fight itself

1. Generate the set. Look at the pictures without type. Reject tiles that are wrong.
2. Replace or reorder until the board is the board.
3. Stamp one style across, or a different line per slide.
4. Convert to a reel only after use_edited_images will be true on purpose.

If slide three is still a maybe, nothing gets type.

FAQ

Can I overlay just the cover slide?

Not with a single overlay object — that auto-expands to every image. Per-slide copy means N overlays for N images, and the others can be empty only if the tool accepts that; the documented contract is 1 or N. Plan the whole set.

Should I paint type into the generate for a more "designed" look?

Only if you will never edit the words. Most carousels rewrite the first line. Stamp.

Do I stamp before or after converting to video?

Before, then convert with use_edited_images. Convert first and the reel is the bare pictures. You will do both jobs again.

What if I do not remember the slideshow id?

Call get_slideshow. Do not overlay from memory of "the last one." You will stamp a different set and think the tool failed.