It is easy to edit and save PDF files as long as you are using the right tools. I personally use PDF Element. There are many reasons why you may need to edit PDF pages. Whether it is changing the font size and color or the size of the document, or removing images - all of these can help improve a document. Here is how you can edit and save a PDF document using this tool. Open PDF. Start by importing the PDF file into the program. One of the easiest ways is to click the "Open File" button and then open the PDF from your local computer. Edit the PDF page. Go to the "Page" menu. Here you will see great options for editing your PDF pages, such as insert pages, delete pages, rotate pages, crop pages, and more. Save your PDF. After you have made the desired changes to your PDF pages, you must then save the result. To do this, navigate to the “File” menu and select “Save as” in the submenu. When editing PDF files downloaded from the internet, I advise taking precautions to protect yourself and your data. Dangerous malicious code gets onto the computer in many ways, including via PDF files. Regardless of the way you receive a PDF, please do not open it with a double click. Instead, scan it first to make sure it is clean. Learn more here - PDFelement
Free PDF Reader — Sumatra PDF — Use Sumatra PDF to open PDF file and save as PDF. For Linux/Mac — Sumatra PDF Download To download Sumatra PDF — Windows / Linux — simply click 'download ZIP/tarball' next to the below text. Windows — Sumatra PDF v2.0 Windows ZIP file Linux — Sumatra PDF v2.0 Linux ZIP file Download Sumatra PDF — Mac — Simply click 'download ZIP' next to the below text. MAC — Sumatra PDF Download Download Sumatra PDF (Mac version only) — Linux — Simply click 'download ZIP' next to the below text. Linux — Sumatra PDF v2.0 Linux ZIP File For Linux (not tested) — Sumatra PDF — Installing or Uninstalling Click below text to install Sumatra PDF. Install Now (Linux) Installing: Linux Mint 17.3 Cinnamon or Ubuntu 15.04 LTS with Sumatra PDF installed. If it doesn't work, download or unzip the above zipped file. Linux — Install.