This Is the Best App to Edit PDF Files Offline for Free.

Sometimes you need to quickly remove a few pages from a PDF or merge it with another document—tasks that aren’t worth the cost of an Adobe Acrobat subscription. PDF Barber is a free website with tools for easy PDF editing, such as splitting files, rearranging pages, and adding signatures.
I like this site for a few reasons. First, it’s free and doesn’t even clutter everything with ads. Second, it works completely offline, meaning you don’t have to upload PDFs to the internet to use it. “Every split, every conversion, every operation happens entirely in your browser,” the site says. You can see for yourself by turning off your Wi-Fi after downloading the tool — it works.
To get started, head to the site and select the tool you want. Basic features include splitting one PDF into two, merging two PDFs into one, rotating pages in a PDF, rearranging pages in a PDF, and extracting pages from a PDF. More advanced tools allow you to add a signature, QR code, remove interactive elements, add watermarks, and compress images.
Once you have selected the tool, you can drag and drop any PDF file from your computer. Note that the file size must be less than 50MB. Since there is no waiting for the file to load, the PDF pages will appear right in front of you, allowing you to make changes. For example, if you use the split tool, you can use checkboxes to select which pages to split in a particular PDF, or split into even and odd pages.
Once you’re done, you can save your finished documents to your computer. It’s all very intuitive and quick, and worth bookmarking if you’re the kind of person who only needs to edit PDFs occasionally.