The GIF to PDF tool reads only the first frame of the uploaded GIF (sharp with page: 0) when generating the PDF.
Adobe's own GIF-to-PDF converter is marketed as producing high-quality PDF output from GIF files, without describing how animated frames are handled. GIF to PDF Online for Free | Adobe Acrobat
GIF To PDFGIF to PDF First Frame
The GIF to PDF page itself describes the tool as converting the first frame of a GIF image into a PDF.
Select the animated GIF from your files to begin the conversion.
Wait for the processing to finish.
Checking the Single Page Output
Each GIF conversion produces a PDF with numberOfPages set to 1, matching the tool's first-frame-only behavior.
Save the completed PDF to your device from the results screen.
Open the downloaded file and count the pages.
Continue with Why PDFs Cannot Be Animated Like GIFs or Convert GIF to PDF on Mobile.
Frequently Asked Questions about GIF to PDF First Frame Only
How do I start the conversion?
Choose the animated GIF from your computer to begin processing.
Where do I find the finished document?
Download the PDF from the results area after processing completes.
How do I verify the page count?
Open the PDF and count the pages to confirm the single-page result.
What if I need all frames?
Split the GIF into individual images using a separate frame extraction tool.