Compare Chrome extensions: PDF toolbox vs Ultimate Volume Booster

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Stats	PDF toolbox	Ultimate Volume Booster
User count	2,798,001+	600,000+
Average rating	4.08	4.56
Rating count	26	3,380
Last updated	2022-01-19	2022-01-10
Size	490.50K	97.78K
Version	2.3.2	1.2.1

Short description
Swiss army knife for PDF files	Feel sound at the new level.
Full summary
PDF toolkit provides a bunch of tools for PDF manipulation. With PDF toolkit, you can: Merge two or more PDF files Convert office documents (DOCX, ODT, and many more) to PDF Append or prepend an image to the PDF file Download PDF files opened in tabs even as embedded documents Please note: Don’t use this app for big files. It could be unreliable if you merge 1000 page long documents. The conversion process could take a long time. Please wait at least 20 seconds before giving up.	One of the most reliable and easiest volume boosters in the Chrome browser. If your speakers or headphones do not reproduce sufficient sound volume for comfortable listening to music or watching video content - use our extension as a speaker amplifier, setting the volume level to more than 600%. Use the sound booster of it on your favorite sites. Just adjust the sound in the current web tab using the slider. ☑️ Sound level over 600% ☑️ Simple and intuitive design, convenient operation ☑️ Automatically shuts off in normal mode ☑️ Switch to any tab that plays audio with one click ☑️ Smoothly increase the volume using the slider 🖥 Full screen Chrome doesn’t allow you to switch to full screen mode when using any extension that processes sound, so you can always see a rectangular icon in the tab bar (to know that the audio is being processed). It is impossible to get around this, after all, it is a good thing that protects you. However, you can improve the situation a bit by pressing F11 (on Windows) or Ctr + Cmd + F (on Mac). 💬 We are always happy for your suggestions! If you like Ultimate Volume Booster, please rate us, give 5 stars! Thanks for using.