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I cannot insert WebP images into a Word document or PowerPoint deck. What can I do?

Convert the images before inserting them: graphics, logos and anything transparent to PNG, photographs to JPEG. Office programs accept those two in practically every version. And if what you really want is a PDF of the images, the images to PDF tool takes WebP directly and needs no conversion step.

Published · 2 min read

Why the program refuses the image

WebP is many years younger than JPEG and PNG, and desktop software picked it up late and unevenly. Word may accept it on your updated laptop and refuse it on an office machine running an older version, or a program may insert it and then show an empty box when a colleague opens the file. Since you rarely know which machine a document will be opened on, the safe route is to have JPEG or PNG images in it from the start.

Which format for which image

  • Logo, icon, chart, screenshot, or anything with transparency: PNG. It adds no loss and keeps the transparency, so a logo sits cleanly on a colored slide.
  • Product photo, team picture, event shot: JPEG at quality 90. It stays good-looking without bloating the deck.

Why not make everything PNG? Photos swell as PNG, and a deck with twenty large pictures becomes heavy to email and slow to open. The reverse also bites: a transparent logo saved as JPEG gets a solid background that shows as a box on a colored slide.

Steps

  1. Split your images into two groups: graphics and photographs.
  2. Add the graphics to the Image format converter, choose PNG and download them.
  3. Click Reset, add the photographs, choose JPEG at quality 90 and download them.
  4. In Word or PowerPoint, insert pictures from your device and pick the new files, not the old WebPs.

If the goal is a PDF, not a document

Sometimes Word or PowerPoint is opened only to gather pictures into one file and save it as PDF, such as a small catalogue or product shots for a client. You can skip that entirely: Images to PDF accepts WebP directly, converts it internally because WebP cannot be stored inside a PDF, and notes this beside each file name. Order the images, choose a page size and you have a PDF without a separate conversion step.

After inserting

If the deck ends up heavy, the cause is usually the images' dimensions rather than their format. A 4000 pixel wide picture on a screen-wide slide is far bigger than needed. Office programs have an option to compress pictures inside the file, or you can reduce the dimensions before inserting.

Common questions

Do the image names stay the same?

Yes. Only the extension changes, so the new image sits next to the old one under the same name.

Does this help with Google Slides or Keynote?

Yes. JPEG and PNG work there too, and they are the safest choice for any program.