
How to add text / add code / write on PDF file in mobile & fill in a PDF form on moblie ?
PDF files must have long been familiar to us, especially office workers. This is the type of document that completely fixes the problem of font errors, keeping the formatting as when it was originally drafted. […]

How to add a signature to a PDF file on mobile ?
Currently , the insertion of signatures into document files is gradually becoming popular . It is considered a form of personal marking, marking copyright data. Most people are used to signing paper documents with a […]

How to edit file PDF online ?
For office workers or students, students…. Surely many times you receive documents as pdf files. Not only reading, sometimes you also need to edit, create, and format these files. In addition to PDF file editing […]

How to save a PDF file as an image?
Your computer does not have software to read PDF files, you must download or copy the file to read it. Therefore, you need to convert the PDF files to an image format (called JPG) to […]

How to add page numbers to PDF ?
PDF has a huge inconvenience that there is no editing option, so many users have quite a lot of difficulty in changing the content, such as inserting more images or even numbering PDF pages. With […]

How to scan a document on iOS
Today’s smartphone can bring many great features to the user. They don’t need to spend hours of time copying each word, each document to a computer/phone by typing manually. Nowadays, there is already a feature […]

How to Convert Photos to PDF
In the daily work process, especially for office workers and those who work a lot on contracts and documents, there must be many times when you want to send a certain file to […]