How to Remove Selected Text from PDF (2026 NEW)
We can relate to this case, when you check a PDF file and find some texts in the PDF incorrect, private or unwanted, and then you decide to [...]
8 Ways to Add Image to PDF on Mac (with or w/o Preview)
We might need to add a personal photo to a resume PDF or insert a PNG signature image to a PDF document, thinking how easy it is to [...]
How to Convert PDF to Black and White Using or Not Using Grayscale
Colorful PDFs are great, but in your case, you just want to convert it to black and white pages. One popular reason to make PDF black and white [...]
5 Ways to Add Audio to PDF 2026 (Tested and Playable)
Our workplaces are getting smarter and smarter, thanks greatly to the prevalence of digital documents like PDF. We can edit text, image, url, add buttons, execute actions, embed [...]
6 Ways to Remove Header and Footer in PDF (Online Free)
A PDF file might contain a header (the top margin of a page) and a footer (the bottom margin of a page), to display useful information on specified [...]
[6 Ways] How to Edit Certificate Online Free, Name Included
I received my certificate for a training program, but noticed the name was spelled incorrectly. I've requested a corrected version from the issuing organization, but the person [...]
(2026) 4 Ways to Make a PDF Uneditable
Making PDF editable is common, but the contrary---making a PDF uneditable is also needed, sometimes. Whatever the reason is to make a PDF non editable, there are solutions [...]
6 Ways to Add Page Numbers in PDF without Hassle
When we create or receive a PDF file, it is probably a multiple-page file, so it stands to reason you might sometimes want to insert page number in [...]
How to Remove a Signature from a PDF in 7 Ways?
There are lots of reasons why you’d want to remove a digital or electronic signature from a signed PDF. You might notice a typo, might want to make [...]
4 Ways to Resize A PDF Image: Enlarge or Shrink Easily
Using images in PDF format files is a fairly common practice. But if you want to enlarge a PDF image to print, or shrink the images in the [...]