PDF to Slides GIF
Turn PDF pages into a page-flipping animated GIF
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Create an animated GIF preview that flips through the pages in order
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About PDF to Slides GIF
Each PDF page becomes one frame of an animated GIF that advances on a timer. Someone scrolling a chat or a social feed sees the whole deck or portfolio play through without opening a file, which is the point of a teaser GIF.
You set how long each page stays (0.1–5 s), the scale (0.5–2×) and the colours per frame (32, 64, 128 or 256), and whether the animation loops. With looping off it stops on the last page. Pages switch instantly; there are no transition effects.
The 256-colour problem
The GIF89a format allows at most 256 colours in a colour table. This tool builds a separate palette for every frame, so a photo page and a text page don’t compete for the same colours. Even so, photos and gradient backgrounds show banding, and the soft grey steps that smooth the edges of letters get coarser.
Fewer colours means a smaller file, but how much it hurts depends on the page. Black text on white looks almost the same at 32 colours; a photo slide starts to look blotchy below 128.
Every frame shares one canvas
All frames in a GIF share a single screen size. When a PDF mixes page sizes, the canvas takes the widest width and the tallest height, and smaller pages are centred with white filling the rest. Mixing portrait A4 pages with landscape slides leaves large white bars on both, so it’s better to include one kind only.
To keep encoding time and memory in check, the tool caps output at 200 frames, 8,192 px per side and 16 million pixels per frame. GIF stores each frame as its own picture, so page count and scale translate directly into file size.
Worked examples
A 30-slide 16:9 deck
- Input
30 slides at 960 × 540 pt, scale 2, 2 s per page, 128 colours, looping- Output
1920 × 1080 px, 30 frames, 60-second loop
Scale 2 draws each point as two pixels, giving 1920 × 1080 (about 2.07 million pixels, well within the cap). A one-minute loop is long for a feed; for a preview, pick the cover and 8–10 key slides with the page range and drop to scale 1 to keep the file manageable.
How to use it
- Open the PDF and enter the pages to include (leave empty for all).
- Set the seconds per page, scale, colour count and looping.
- Create the GIF, check speed and quality in the preview, then download.
Frequently asked questions
Why can’t the delay go below 0.1 s?
GIF stores frame delays in hundredths of a second, and 0.1 s is already far too fast to read a page. The tool doesn’t accept anything shorter.
What shrinks the file most?
Scale. Going from 2 to 1 cuts the pixels per frame to a quarter. After that, fewer pages, and finally fewer colours.
Can it make an MP4 instead?
No, only GIF. For photo-heavy decks a video format is the better fit because it has no 256-colour limit.
Sources
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