pdfpix

Turn a PDF into an editable PowerPoint deck

or drop one here
  • One page becomes one slide, at the page size most of the PDF uses.
  • Text stays editable text, with its face, size, weight, slant, colour and rotation.
  • Drawn lines and filled shapes become PowerPoint shapes. Pictures are copied byte for byte.
  • A gradient fill carries, with its colour stops. A stencil mask carries in the colour it was painted. A tiling pattern does not, and it is counted.
Choose a PDF first.

Convert a PDF to PowerPoint without uploading it. This tab reads every run the page drew, sorts the glyphs back into lines, and writes one slide per page. Each line is editable text in its own box, drawn lines and fills become shapes, and pictures are copied byte for byte. The .pptx is reopened with a separate package reader and 98% of the text must come back.

How to convert a PDF to PowerPoint

  1. Choose a PDF

    Press Choose a PDF, or drop one on the page. The file is opened in this browser tab.

  2. The tool reads every drawing the page makes

    Each run of text comes back with its box, its size, its colour, its angle and the face it was set in. Lines, filled shapes and pictures come back with their geometry.

  3. It writes one slide per page

    Runs that share a baseline become one text box, placed where the PDF drew it. A vertical face draws a column instead of a line, so it gets a box that runs downward. Drawn lines and fills become PowerPoint shapes. Pictures are copied out of the PDF byte for byte.

  4. Check and download

    The new .pptx is reopened with the package reader this project uses to prove its own archives, and its slide text is counted against the text the page showed. A failed check does not produce a download.

What a slide can hold, and what it cannot

A PDF places every glyph itself. It has no idea what a line is: one show-text operator can be a whole paragraph, a single word, or one letter nudged half a point sideways. A slide has text boxes, so the runs a page drew are sorted back into lines here. Two runs share a line when they are drawn at the same angle, sit on the same baseline, and follow each other along it. A gap wide enough to be a word break becomes a space. A gap wide enough to be a table column or a page gutter ends the box, because a slide lays a box out from its left edge and one box spanning a gutter would pull the second half of the line back. A vertical face draws the same page turned a quarter turn: its pen runs down the page and its glyphs stay upright. The same two rules sort those runs into a column, and the slide holds the column as a text box that reads downward.

Each page becomes one slide, at the page size most of the PDF uses. A page of another size is fitted into that slide rather than given its own, because a .pptx carries one slide size for the whole deck. Text keeps the face, size, weight, slant, colour, transparency and rotation the PDF drew it with, and the box is positioned from the baseline and the face metrics, so the first line lands where the page put it.

Drawn lines and filled shapes become PowerPoint shapes with the same geometry and the same solid colours. A gradient carries as a gradient, with its colour stops and its direction, whether the page painted it across a clip or named it as a pattern. A picture is copied out of the PDF rather than redrawn, so a stored JPEG arrives byte for byte. A stencil mask, which paints one flat colour through a one bit shape, arrives as a picture in that colour. A tiling pattern has no matching slide shape, so it is counted in the receipt rather than replaced by a flat colour that would claim more than the tool knows. One slide takes at most 6,000 drawings and 12,000 runs of text from its page, so a drawing built from a hundred thousand paths still converts instead of producing a file no editor will open. The receipt states the count the page stopped at.

This tool will never render a page to an image and put the picture on a slide. That shortcut produces a deck that looks right and holds no text, and it is the reason most converters cannot say what they kept. The rule the whole site is built on is that selectable text stays selectable, so a path that cannot prove the text survived does not ship.

The check is the reason there is a download. The .pptx this tool wrote is reopened with the package reader this project uses to prove its own archives, only the slide parts are inflated, and their non-space characters are counted against the characters the PDF drew. Below 98% nothing is offered. The last measured run converted 1,276 PDFs holding 48,695,229 characters into 31,763 slides and found 48,695,015 of them again. No document fell under the floor and the lowest kept 99.38%. It refused 24 more: 18 hold no text at all, and 6 reopened holding too little of it.

Once you have the deck

The .pptx this tool writes is an ordinary presentation, so PowerPoint, Keynote and Google Slides all open it. The guides in the Office and PDF cluster cover the jobs next to this one: how to convert a PDF to Word when the pages hold prose rather than slides, and how to convert a PDF to Excel when what you want is the table. The rest of the catalog is on the tools page, and how it works explains why none of it needs a server.

Questions

Does this PDF to PPT converter upload my file?
No. The PDF is opened, converted, reopened and checked in this browser tab. The bytes never leave it, so there is nothing to delete afterwards.
Are the slides editable, or just pictures of pages?
Editable. Every line becomes a real PowerPoint text box holding real characters, with the face, size, weight, slant, colour and rotation the PDF used. No page is ever rendered to an image and dropped on a slide, because that would turn a text document into a picture. A PDF that drew no text at all is the one exception: it has no lines to convert, so its pages carry as the pictures the PDF already holds.
How do I convert a PDF to PPTX with the layout kept?
Open the PDF here and press Convert to PowerPoint. Each page becomes one slide at the page size most of the PDF uses, and each text box keeps the position the PDF drew it at, so the slide matches the page rather than reflowing. A column of vertical text stays a column, in the place the page set it.
How big is the .pptx compared with the PDF?
Usually smaller. A slide is XML and XML repeats its tags, so the parts of a deck are several times the PDF before they are packed. They are deflated with the same codec a zip uses, which took a measured 60 deck run from 59.22 MB stored to 3.71 MB, a saving of 93.7%. In a 1,276 document measurement 1,830.59 MB of PDF produced 915.02 MB of decks, half the input, and 562.73 MB of that was pictures copied out of the PDF.
What does not carry over?
A tiling pattern fill has no matching slide shape, so it is counted in the receipt instead of guessed at. A gradient does carry: whether the page painted it across a clip or named it as a pattern, it becomes a slide gradient with the same colour stops. A stencil mask carries too, as a picture in the colour the page painted it with. One slide takes at most 6,000 drawings and 12,000 runs of text from its page, which stops one dense drawing from making a deck no editor will open; the receipt states what the page reached that limit with. Text the page draws and never shows, past the paper edge or under a clip that excludes it, is left out and counted, because no reader finds it in the PDF either. Everything else the page showed is placed.
Does it work on a scanned PDF?
Yes, as pictures. A scan holds page pictures and no characters, so each page comes out as the picture the PDF already holds, copied at its own resolution onto its own slide. PowerPoint is a visual format and nothing is re-rendered, but those slides hold no editable text. Reading characters back out of a scan needs OCR, which this tool does not do.
What exactly does the check prove?
The tool reopens the .pptx it wrote, inflates only the slide parts, and counts the non-space characters a reader finds inside them. At least 98% of the characters the PDF drew must come back. Across 1,276 measured documents holding 48,695,229 characters, 48,695,015 came back. The 214 that did not are all on one page that went past the per-slide drawing limit, and that deck says so in its receipt.
Can I go the other way as well?
Yes. PowerPoint to PDF lays a .ppt or .pptx deck out in the same tab and proves the slide text reached the PDF before offering it.

The other pdfpix tools

All 35 of them run in a browser tab like this one. Each reads its own output back and checks it before offering the download, and none of them needs an account.

Where to go next