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Ravish Agrawal
Your widescreen deck looks great on a projector and cramped on a phone. The feed is vertical, and your 16:9 slides shrink to an unreadable sliver. With Gamma, you can turn those widescreen slides into vertical social slides in minutes, keeping your content while reshaping the layout for mobile. Upload the deck, import it slide-for-slide, or connect where it lives, and let Gamma's AI agent handle the reflow.
The issue is aspect ratio. Widescreen slides are built for landscape screens; social feeds and phones are portrait. Just resizing a widescreen slide leaves tiny text and huge margins. Gamma's AI agent reads your deck, checks which platform you're posting to, and reshapes each slide into a vertical layout that fills the screen and reads at a glance, ready to export as images or a PDF.
Squeezing a 16:9 slide into a vertical feed wastes the screen. A proper vertical version:
Fills the portrait frame, no wasted margins top and bottom
Resizes text and visuals so they read on a phone
Reflows each slide's content into a mobile-first layout
Exports as images or PDF sized for social and messaging
The point is readability. A vertical slide uses the space people actually see on their phones, instead of wasting it on empty margins. And because the same source can also become a carousel, a website, or a doc, your widescreen deck can reach far more than the room it was built for.
Upload your deck, paste the content, or connect the tool where it lives, Notion, Google Docs, your drive. Already in PowerPoint or Google Slides? Import it slide-for-slide with near-perfect fidelity and let Gamma work from that. Gamma reads the full deck and understands each slide's content, no copy-paste rebuilding.
Gamma's agent confirms your platform and audience, then reshapes each widescreen slide into a vertical layout: content stacked for portrait, text sized for mobile, and visuals placed to fill the frame. The landscape deck becomes a feed-ready set.
Bold type, clean vertical layouts, and spacing built for small screens. Each slide reads at a glance, and the set holds together as a sequence. When you're done, export as images or a PDF sized for social.
Make sure your widescreen deck has the slides you want to repurpose. A clear slide order converts most cleanly into a vertical set.
Open gamma.app and start at the prompt box. Upload your deck, import it from PowerPoint or Google Slides, connect your source, or paste the content, then ask for what you need, for example, "Convert these widescreen slides into a vertical carousel for Instagram."
A typical widescreen-to-vertical flow looks like:
Vertical title or hook slide
One key point per vertical slide
Supporting visuals resized for portrait
Data or charts reflowed to fit
A recap slide
A call to action slide
Trim anything that only made sense on a big screen, vertical rewards focus.
Gamma builds a complete, formatted vertical set from your widescreen deck in roughly a minute.
Check that text is large enough to read on a phone and that nothing feels cramped. Gamma handles the reflow, but when you want an element in an exact spot, switch to freeform editing, or select an element and tell AI editing what to change. Make sure each vertical slide carries one clear idea.
Export the vertical slides as images or a PDF and post to Instagram, LinkedIn, Stories, or messaging. Keep the widescreen deck for presenting and the vertical set for social, both from the same source.
Gamma vs. resizing in PowerPoint
Layout: Resizing the slide size leaves content stranded; Gamma reflows it for portrait
Effort: Manually rebuilding each slide vertical takes hours; Gamma drafts in minutes
Readability: A shrunk widescreen slide is hard to read; Gamma sizes for mobile
The honest take: PowerPoint lets you change slide dimensions and rework every slide by hand, which gives you full control if you have the time. Gamma reflows your deck into vertical automatically, so you skip the slide-by-slide rebuild.
Gamma vs. designing new slides in Canva
Starting point: Canva starts blank; Gamma starts from your existing deck
Decisions: Canva asks for many design choices; Gamma's agent makes smart ones for you
Speed: Building vertical slides from scratch takes time; Gamma drafts in minutes
The honest take: Canva is great for designing vertical content from scratch. When you already have a widescreen deck and just need a vertical version, Gamma reshapes what you have instead of starting over.
Size up the text. What reads on a projector can be too small on a phone.
Stack, don't shrink. Reflow content into a portrait layout instead of squeezing it.
One idea per slide. Vertical space rewards focus over density.
Fill the frame. Use the full portrait screen, avoid big empty margins.
Lead with a hook. The first vertical slide decides whether anyone keeps swiping.
Split busy slides. A dense widescreen slide often becomes two clean vertical ones.
Keep the widescreen version. Hold onto the original for presenting while the vertical set handles social.
Yes. Your visuals come across and get resized for the vertical layout. Adjust placement with freeform or AI editing if you want something exact.
It depends on the platform, but portrait formats built for mobile feeds work best. Tell the agent your target platform and it reshapes accordingly.
Yes. Build once and repurpose. Keep the widescreen deck for presenting and the vertical set for social, both from the same source.
Export as images or a PDF. Image exports drop into most social and messaging apps, sized for vertical screens.
Your deck already has the content, it just isn't shaped for the phone. Give it to Gamma, let the agent reflow it into vertical slides, and export a set ready for the feed. One source, two formats, and slides that finally read on the screens people actually use.
