HelloSlide is a website that gives life to your presentations.
It helps you share your message more effectively, by adding voice on top of your slides.
Instead of recording your voice, just type the speech, and HelloSlide generates the audio automagically.

It's our mascot. It's a talking slide.

It's simple:

1. Upload a PDF of your slides to our website.
2. Type the speech for each slide using our editor.
3. Press play to hear your presentation.

If you record the voice, you have to get it right in one shot, and you can't later change it. Also, you can't collaborate with your friends, and it's harder to make the presentation available in other languages.

Once you type the speech for your slides, you can:

1. Edit the speech until it's perfect.
2. Make it available in 20 different languages, automagically.
3. Make your presentation more visible on the web, because search engines will index the speech in your presentation.

In the sign up page, enter your email and pick a password. We'll send you a email with a link that you can click to complete your registration. That's it!

For now, you can only upload your presentation in PDF, but we will soon support other formats.

If you created your presentation in PowerPoint or Keynote, you can export it to PDF:

• Instructions for exporting to PDF on PowerPoint
• Instructions for exporting to PDF on Keynote

In the editor, drag your slide thumbnails to make them subslides.

For now, we support appear/disappear animations only. Here's how it works:

1. In your presentation software, export to PDF so that the "builds" are printed on different slides. For example, on Keynote, select File → Export to PDF → Print each stage of builds. On Powerpoint, this separation must done manually (we're working on a solution).
2. Upload the PDF to our website.
3. In our editor, mark the subslides by dragging their thumbnails to the right. Subslides will be displayed appropriately when played.

Yes, each PDF must be smaller than 100 MB.

In the upload page, if you select Spanish, then your slides will "speak" in Spanish.

The language of the voice-over is selected when you upload your presentation.

We currently support 19 languages: Chinese, Czech, Danish, Dutch, English, Finnish, French, German, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, and Turkish. Let us know which other languages you'd like to see supported.

After you upload your PDF to our website:

1. Press the edit audio button in the top toolbar.
2. Type the speech for each slide.
3. Hear the result by pressing play in the top toolbar. There's also a preview button to hear the speech for just one slide.

Translation is currently in beta, but will soon be available as a paid feature. If you're interested, please leave your email here.

"Chemistry" will be defined with information from Wikipedia, when the viewer is watching the presentation.

The genius bar defines concepts as they are mentioned in the presentation. In the voice editor, the author can mark the keywords to be defined with square brackets, like [this].

Sorry! Just let us know and we'll fix it!

Just send us an email with your question.