How do I apply a new template to an existing PowerPoint deck?

In PowerPoint you can paste the slides into a deck made from the new template with 'Use Destination Theme', reset each slide and reassign layouts. Logos and footers typed onto slides stay behind, hard-coded colours and fonts stay old, and 4:3 content has to be refitted by hand. Our free rebrand tool, in development, does this for the whole deck: it lists the old brand items it finds, removes the ones you confirm, fits 4:3 content to 16:9 without stretching and reports every slide.

How do I convert a 4:3 PowerPoint to 16:9 without stretching?

PowerPoint's Slide Size change either scales everything up (Maximize) or shrinks it into the middle (Ensure Fit), and master pictures such as logos get stretched. The rebrand tool keeps every picture's proportions, lets charts and tables use the new width, and never makes fonts larger.

Does the rebrand tool use AI or rewrite my text?

No. It uses no AI model and does not reword anything. It removes only old furniture such as footers, page numbers and logos, and lists every text it removed, word for word.

Is the rebrand tool available now?

Not yet. The conversion engine is built and tested on test decks; the upload page is not built. Join the list to get the link when it opens.

Free tool · in development · not available yet

Rebrand a PowerPoint deck onto your new template, without losing a word

Your firm has a new brand. Hundreds of decks still carry the old logo, the old footer and the old colours, many of them in 4:3. This free tool moves a deck onto your new master in one pass and tells you, slide by slide, what it did.

Short answer. PowerPoint's "apply template" changes the theme but leaves behind everything that was typed or pasted onto the slides: old footers, page numbers, logos, hard-coded colours and fonts. Changing 4:3 to 16:9 then stretches pictures or leaves empty bands. The rebrand tool lists every old-brand item it finds, removes the ones you confirm, fits 4:3 content to 16:9 without stretching, keeps charts as native charts, and reports every slide.

What goes wrong when you rebrand a deck by hand

Old furniture stays. Footers, "Confidential" lines, page numbers and logos pasted onto each slide are not part of the template, so applying a new one leaves them in place.
4:3 to 16:9 stretches or shrinks. "Maximize" scales content up and stretches master pictures; "Ensure Fit" shrinks everything into the middle with empty sides.
Old colours and fonts survive. Anything formatted by hand keeps the old brand blue and the old font, including inside charts.
Placeholders move. A slide on a layout the new master doesn't have falls back to a different one and its text lands in the wrong place.
Nobody can say what changed. After a manual pass, the only check is reading every slide against the old deck.

How the tool works

Upload the old deck and your new master (.pptx). Optionally type the old company name as it appears on slides.
Confirm what goes. The tool lists each old-brand item once, with the slides it is on. Only what it is certain about is removed on its own: old footer, date and page-number boxes, and a footer line that changes only by its page number. Logos, bars and confidentiality lines are removed only if you tick them, so a client's logo or a "Source:" line is never deleted by a guess.
Download the new deck and the report. Every slide gets a verdict (follows the new layout, carried over and fitted, or needs a look), and every removed text is listed word for word.

Before and after

A 20-slide test deck we made for this (invented content), on the old 4:3 brand, moved onto a new 16:9 master. Left: the original. Right: the result after confirming the old logo and footer bar.

Before

After

The chart stays a native, editable chart; its old navy and orange follow the new palette; it uses the 16:9 width without being stretched.

Old slide with six workstreams and red, amber and green status dots — Colours that carry meaning are never recoloured: red, amber and green status stays red, amber and green.

The same status slide on the new master with the red, amber and green dots unchanged — Colours that carry meaning are never recoloured: red, amber and green status stays red, amber and green.

Old slide with a five-row table in the old blue — Tables keep every row and number and take the new width; the source line underneath stays.

The same table on the new master, full width, in the new table colours — Tables keep every row and number and take the new width; the source line underneath stays.

What it keeps, and what it changes

Kept as it is	Changed to the new brand
Every word and number (the tool never rewords)	Old footers, page numbers and the logos you confirm, removed
Charts as native charts, tables, pictures (never stretched), groups, connectors, embedded Excel	New master's footer, date and slide numbers
Superscripts and subscripts, bold lead-ins, bullet levels, speaker notes, links, hidden slides, sections	Old brand fonts replaced by the new theme fonts (symbol fonts such as Wingdings untouched)
Red, amber and green status colours and heatmaps	Old brand colours mapped to the new palette, keeping their contrast
Your "Source:" and footnote lines	4:3 content fitted to the 16:9 content area (fonts never enlarged)

What we have proven so far

Six test decks (42 slides) that each attack a known problem: no placeholders at all, embedded Excel and connectors, superscripts and chemical formulas, status colours and Wingdings ticks, a messy third-party master.
Moved onto three masters, including a real third-party consulting template: 126 of 126 slides pass 18 automatic checks (words, numbers, formatting, pictures, charts, colours, layout), with the removals a consultant would confirm simulated by the test, and were checked by eye. We wrote these decks alongside the tool, so they are not the hardest test.
Three rounds of independent adversarial review, each with its own attack decks, found 52 problems; 51 are fixed and one is a documented limit. Every one of them is now a test that runs on each change.
The tool is built without any AI model: nothing you upload is sent to one.

Not built or not proven yet

Not built: the upload and confirm page. Today the tool runs on our side only.
Not proven: real client decks, and opening the rebranded deck in real PowerPoint (our other components pass that test; the current version of this one has not been run through it yet).
Not carried over: review comments and custom shows (reported, not silently dropped). SmartArt, video and animations are not tested yet.

Get the link when it opens

Free for a one-off rebrand. We'll email you once, when the tool is live.

Questions

Does it use AI or change my text?

No model is involved and nothing is reworded. It removes only old furniture (footers, page numbers, and the logos and lines you confirm), and the report lists every removed text word for word.

What happens to my old logo if it is also my client's logo?

Nothing, unless you tick it. Repeated pictures are offered for removal, never removed on a guess, because a client's logo looks exactly like an old brand logo to a machine.

Can it convert 4:3 to 16:9?

Yes. Pictures keep their proportions, charts and tables use the new width, and fonts never get larger. Content that would have to shrink a lot is marked "needs a look" instead of being squeezed.

Where do my files go?

The tool will run under the same rules as our deck builder: no AI, files deleted 30 days after the job.

Can it rebrand many decks at once?

Not yet; one deck at a time first. Batch conversion is planned after the single-deck tool is live.

Irresistible builds consulting decks inside your firm's own template, every word kept as written →