PDF Toolkit ‪+‬ 4+

Mobile Science Apps

    • 4.5 • 47 Ratings
    • $1.99



With PDF toolkit, manipulate PDF files: merging multiples files into one, splitting one big file into smaller ones, extracting pages, extracting images, compressing entire files.

The key point of the app is efficiency: the interface is simple and unobtrusive, you drag your files onto the window and perform the action of your choice.

If you have questions before buying, or need any kind of help after you bought PDF Toolkit, please contact us at mob.sci@gmail.com!


We're the App Store's most sold app in Italy! Out of all categories! Grazie infinite, Italia!

#1 productivity app in France
#5 in Germany, Spain and Canada
#6 in Australia, China, Netherlands
#7 in Japan
#9 in the US

Thanks to all of our users!

What’s New

Version 2.4

Dark mode, bugs fixes, full support for latest macOS version

Ratings and Reviews

4.5 out of 5
47 Ratings

47 Ratings

calmandrational ,

Slick, and has great support

I love this app. It is simple to use, and it works! Admittedly, I use it primarily for concatenating documents. I have used the “Compress” feature once, and it did an interesting job, offering me options as to how much compression I wanted. I no longer have Acrobat Standard to compare that feature to, but at the difference in price, it is a no-brainer. The more I use it, the more I appreciate some extras, such as automatic sorting of files dumped into it (Alphabetical, Reverse Alphabetical, Invert Order). This app, combined with the automatic document feeder on my scanner, helped change a tedious task to a much simpler one. And on the rare occasions that I have needed support for the app, they were very responsive. Hard to ask for more than that!

wakpoyters ,

Does it all

Great app that does it all for PDF files. I use it mostly to merge several files into a single PDF, even if I have a several dozens. What I use most is the compression mode, so that I can send large PDF files via e-mail. The files produced are often too large, and the compression window with its many settings lets me choose exactly the size I need. Simply drag your PDF into the program and choose the size you want. It works very well with files with large images, but the quality remains very good. Essential must have program!

The Jay ,

Helpful App, Even More Helpful Customer Assistance

I have many scanned docs that crash Preview. When using this app to change the pdfs to lower quality of the high quality 300 DPI, the results cannot be visibly noticed. I tested this with multiple files viewing in Adobe with multiple people. The only way we could tell the difference was to look at the size of the file, which we very different. And now I can once again use Preview for editing. The developer is very keen on providing troubleshooting assistance as well.

App Privacy

The developer, Mobile Science Apps, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.