MuPDF
Sumatra PDF
Okular
Adobe Acrobat DC
Adobe Reader
Foxit Reader
Xodo
Haihaisoft PDF Reader
Ubi Timer
E.ggtimer.com
UbiTimer is a lightweight PowerPoint add-in that adds countdown, count-up, and radial timers directly to your slides. Perfect for teachers, presenters, and trainers, it helps keep lessons and meetings on schedule. Works on Windows and Mac, supports slideshow mode, and offers a free EDU version for schools.
๐น One-time purchase โข No subscription โข Free for teachers ๐ https://ubitimer.com
Ubi TimerNo features have been listed yet.
MuPDF is recommended for users who need a lightweight and fast PDF viewer that can handle a variety of document formats. It is particularly suitable for those who prefer open-source software and require a tool that can be easily integrated into custom applications. Additionally, it is ideal for developers looking for a library to incorporate PDF functionality into their software products.
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Ubi Timer's answer:
Ubi Timer brings timing directly into PowerPoint, so presenters do not need to switch to a browser, phone, or separate desktop timer. It supports countdown and stopwatch modes, works during Slide Show, and can be used per slide or across sections of a presentation, which makes it especially useful for lessons, workshops, rehearsals, and live talks.
Ubi Timer's answer:
Choose Ubi Timer if you want a timer that feels native to PowerPoint instead of bolted on. It is designed to be quick to set up, easy to style to match your slides, usable on Windows, Mac, and PowerPoint for the web, and reliable in live presentation settings without needing to leave your deck. It also offers a free version and a free EDU option for verified schools.
Ubi Timer's answer:
Ubi Timer is built for teachers, trainers, presenters, and speakers who use PowerPoint and need better control over timing. It is especially well suited for classrooms, workshops, meetings, practice sessions, and any presentation where staying on schedule matters.
Ubi Timer's answer:
Ubi Timer was created out of frustration with standalone timers and makeshift PowerPoint timer setups built from animated slides. The goal was to create a cleaner, easier, and more reliable way to manage time inside PowerPoint without disrupting the presentation experience.
Ubi Timer's answer:
Ubi Timer is built as a Microsoft PowerPoint add-in for Microsoft 365 and Office, designed to work directly inside PowerPoint across supported Windows, Mac, and web environments. I could not find a trustworthy public source naming the full internal stack, so this answer is safest for a public listing.
Ubi Timer's answer:
Teachers and schools Corporate trainers Workshop facilitators Public speakers and presenters Teams using PowerPoint for meetings and rehearsals
Based on our record, MuPDF seems to be more popular. It has been mentiond 21 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Sioyek uses the MuPDF engine, which supports EPUB: https://mupdf.com/. - Source: Hacker News / almost 2 years ago
MuPDF mini (version 1.23.3a): Minimalist viewer for PDF, XPS, CBZ, unprotected EPUB, and FB2 documents. Source: almost 3 years ago
Mupdf is the mupdf of epub; it supports epub and other formats beyond pdfยน. When I've had really large files I've used mupdf to read them a few times, as it seems to be far better at handling them than other tools. ยน https://mupdf.com/. - Source: Hacker News / almost 3 years ago
Doesn't exactly fit your requirements, but might as well mention it here: muPDF - the most lightweight PDF viewer that I've ever seen. You don't even have to install it. Mobile version exists by the way. Source: over 3 years ago
MuPDF viewer (version 1.21.0a): Lightweight document viewer. Source: over 3 years ago
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
E.ggtimer.com - A simple countdown timer with an alarm for the browser.
Okular - Okular is a universal document viewer based developed by KDE.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Adobe Reader - Adobe Acrobat Reader is a free tool for viewing documents that have been stored in Adobe's Portable Document Format (PDF).
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.