PicoPDF is one offline program easy-to-use PDF editor that lets you edit text and add pictures in your documents.
Drag and drop a PDF document into the application GUI or use it button Open to select the file you are interested in. PicoPDF displays the contents like a regular PDF reader.
Turn left click to some text in the PDF and it will change to a text box that you can use to edit existing content, fix typos, or add something of your own.
The program recognizes the formatting text of the document and preserves it for the changes you make, so you don't have to worry about the font style in the text you add.
Was there an error while editing? The PicoPDF application has undo and repeat functions.
Want to move something to a page? Click the scroll button, select the content and drag it anywhere you want. You can also use PicoPDF to add images to a PDF document, and it supports many different image formats such as JPG, PNG, GIF, BMP, TIF, PSD.
Use the save button to save the changes you made to the PDF.
If you are looking for one tool for adding/removing content to PDF files, then it's worth a try.