Google Slides is where a lot of lecture material lives, and it has the same problem every slide deck has: it was built to be presented, not studied. The text on the slide is a caption. The explanation was spoken.
That matters more in Google Slides than in most tools, because the speaker notes are often where the real content is hiding. This is how to get it out, and how to decide which slides are worth a card.
The slide is a caption, the notes are the lecture
Open any deck and look at a slide with a title and four bullets. The bullets are labels. The sentences that explain them are either in the presenter's head or, if you are lucky, in the speaker notes.
So before you export anything, open the notes pane and check. If the notes are empty, you are working from the thin version, and the deck will need expansion. If the notes are full, you have a real document, and the job gets much easier.
Export the deck to PDF
In Google Slides, go to File > Download > PDF Document. Choose the whole deck or the slides you need. The PDF keeps what is on the slides.
Two checks before you upload:
- Does the text select? Open the PDF and drag across a line. If it highlights as text, you are fine. If it highlights a rectangle, the file is images and there is nothing to read.
- Is the range finishable? A hundred slides is a hundred slides of cards. Export the one lecture.
Google Slides exports to PDF, Word, and plain text; WakeCards reads all three. If your notes are already a Word document, the Word route is the shorter path from here.
If the real content is in the speaker notes, use the text export
Here is the trap with Google Slides. The PDF keeps the slide text and drops the speaker notes, which is exactly backwards if the notes are where the teaching is. A title-and-bullets slide becomes a card that asks nothing, while the sentence that would have made a good card never made it into the file.
Google Slides can also export a plain text version, and it tends to keep the speaker notes that the PDF loses. If your deck hides its content in the notes, that is the export to check first, and it usually produces far better raw material than the slides alone.
Run both if you are unsure. A quick look at the text export tells you in ten seconds whether your deck is a real document or a shell.
Which slides deserve a card
Not every slide deserves one. Sort them roughly before you generate:
- Definition and summary slides. These often contain a full sentence and convert cleanly.
- Process slides. Step lists convert well, because a step is a natural question and answer.
- Bullet fragments. These give labels without explanations and will need you to fill in the rest.
- Section dividers and title-only slides. These are not facts. Skip them.
The assisted pass
- Export, then upload to WakeCards. It previews the cost before you process anything.
- Pick one lecture's range. Smaller is better; you can always add the next one.
- Fix the fragment cards. The generator cannot invent the explanation that was only spoken, so bare-bullet cards need your words.
- Answer with the deck closed. Reading a card is reviewing, not studying.
- Keep the ones you missed. Those are the deck working as intended.
What you are buying with the tool is not better questions than you could write. It is a first draft that turns an evening of writing into half an hour of editing.
What comes out badly
- Diagrams and embedded drawings. Text export keeps the labels, loses the relationships.
- Equations written as images. No OCR, so the formula is a picture and nothing more.
- Charts. A chart is an argument, not a fact, and it does not survive as text.
Check anything built from these against the original slide. The product page lists the same limits, and they are honest ones.
A realistic first pass
- Open the notes pane. Decide whether you are working from slides or notes.
- Export to PDF, and to plain text if the notes are full.
- Upload the better of the two files and pick one lecture.
- Spend thirty minutes fixing the cards that ask nothing.
- Run it once with the slides closed. Write down the misses.
An hour, and you have a deck you can keep returning to instead of a slide deck you keep skimming.
The part that is not about Google Slides
Format, export, notes or slides, all of it is logistics. Whether you learn the lecture depends on whether you ever answer questions from memory with the source closed. A deck is just the most convenient way to get the questions. See spacing the reviews for what to do once the deck exists.
Common traps when converting a slide deck
Four failures account for most disappointing decks, and all four happen before a single card exists.
Trap one: converting the whole presentation. A term's worth of slides produces several hundred cards that nobody finishes. Convert the lecture you are being tested on, then the next one, and let the deck build week by week.
Trap two: trusting a deck you did not attend. If you downloaded someone else's slides, the speaker notes may be missing and the slides may assume context you never received. Cards built from those slides come out fluent and hollow. Check what the source actually contains before you trust the output.
Trap three: ignoring the order of the slides. Slide order often carries meaning, a sequence of causes or a worked workflow. When cards are generated out of order, that thread disappears and the deck becomes a bag of facts. For process slides, keep the sequence by writing the steps as a numbered set yourself.
Trap four: never deleting. A generated deck is a draft. The value is in the trimming, and the trimming is what people skip, because a card that is already written feels finished. It is not finished until you have removed the ones that ask nothing.
A related trap is format. Slides built from screenshots, pasted images, or drawn shapes export as pictures, so a mostly-visual deck produces little or nothing to read. When that happens, compare the PDF export and the text export and take whichever has real words in it. If both come back empty, the content was spoken, and that is a cue to ask a classmate rather than to generate.
If your deck is already a document
Some decks are really documents. If a colleague exported their notes into slides, or the deck was built from a written report, the slide text is already full sentences and it converts cleanly with almost no editing.
The sign is a slide with paragraphs rather than bullets. When you see those, the export is the easy path and most of your time goes into trimming rather than expanding. Knowing which kind of deck you have before you start saves the disappointment of expecting clean cards from bullet fragments.
Frequently asked questions
Does the Google Slides PDF keep my speaker notes?
No. The PDF keeps what is on the slides and drops the speaker notes. If your notes matter, export the plain text version as well, because that is the one that tends to keep them.
Can I upload a Google Slides file directly?
No. Download it as PDF, Word, or plain text first. WakeCards reads those three plus Markdown, but not the Slides format itself.
The PDF came out as images. What now?
Re-export with the standard PDF option, or export the plain text version instead. A text export avoids the image problem entirely.
How many slides should I convert at once?
One lecture. A deck you finish beats a deck you start, and the next lecture is always there tomorrow.
Are cards made from slides as good as cards I write myself?
They are a draft. They save the writing time, but you still fix the vague ones and answer the deck with the source closed. That part is the studying.