When working with electronic documents, our first concern is always the security of these. That is why we are always looking for a format that we can protect to avoid problems, and there is not one with better features than the PDF file.
There are undoubtedly three letters that make a difference, this because there is nothing safer than a letter with this extension, since even we can protect them with a password so they cannot be copied or edited. In addition to that, they take great care of the aesthetics, because when you save them when you open them you will see them as you expected. Unlike other formats that change when they are re-opened or sent.
Adobe, the manager of this firm, has created different programs capable of opening them and even creating and editing them. At the same time, others have developed different tools that allow them to do the same task. For this reason and for being one of the most used, we invite you to continue reading this article so that you know what they are and see which one is better for your operating system.
Index:
What is the PDF format extension and what can be saved in it?
The acronym PDF stands for Portable File Document, this English expression corresponds to Spanish to “transferable document file”, and it is a data and storage format used to describe digital documents . These usually carry the .PDF extension and are easily identified because they have an icon. It is clear that this will not be seen if there is no application to see this type of files.
Since its arrival in 1993, this extension has changed what refers to the digital world of documents. It was mainly developed by Adobe Systems, and was cataloged as a cross-platform, which means that it can be opened in different operating systems such as Linux, MacOS, Windows, Android, iOS and others, without losing their appearance or structure of the original.
These can contain and save a combination of text, images, videos, hypertext elements, links, form fields, among other things that you need to create such documentation. As if that were not enough, they have the ability to be signed electronically for those who need to customize them.
The person who creates it has all the authorization of this and can assign different security options, you may well, ask for a password to open it, prevent any changes, make it impossible to print, and others. As we mentioned, it is one of the safest. And in case you wonder if there is any way to eliminate this configuration, the answer is no. That is why it is one of the most used by people and companies to protect their information.
List of the top 10 applications to open PDF documents on your mobile Android and iOS
Here are 10 applications to read PDF files. Not only will we mention some to open them, but also within these we will attach some that offer the possibility for the creation and editing of these.
Here are the 10 applications with the most potential for iOS and Android:
Adobe Acrobat Reader
This application is the native one to open and edit this type of files, it is also one of the best known in mobiles and computers. With this you can work on any smartphone without problems and easily. Well, it incorporates all the tools you need to make annotations, sign, modify, etc.
It allows synchronization with clouds such as Dropbox, Google Drive or Microsoft OneDrive to make it easier for you to store files. You can also export files to Word and Excel through it.
Foxit Mobile PDF
Listed by Google Play stores and Apple Store as an excellent PDF reader. Particularly it is designed for tablets, however, it adapts very well to mobile devices. Offers a free version that allows viewing and adding bookmarks, and a premium that turns out to be more complete by offering text and image editing. It contains ConnectedPDF technology, which is one that offers cloud-based services.
Among its features are that it offers a reliable, light, fast and secure service. Available in 12 languages for users around the world.
Xodo PDF Reader & Editor
This complete PDF reader has support for the main hosting sites such as Google Drive, Dropbox and OneDrive, being able to synchronize your documents and access it from any device where you need it. It is perfect for those people who constantly work with them, because as their name says, in addition to reading them, it allows you to create and edit them. As if that were not enough, it also offers you the possibility to choose the format with the you want to save or add a signature.
WPS Office
This is another of the best positioned for being one of the most downloaded. It is used for reading, editing and creating PDF files. Also, can work to convert Word, Excel, and Power Point documents to this extension, an add-on that goes unnoticed by many and is extremely useful and important.
In addition, gives you the ability to obtain encryption to secure them, as well as the possibility of connecting it to different storage systems and sharing them through different platforms such as email, WhatsApp, Telegram and others. Supports Doc, Java, Pptx, Docx formats, among others.
MuPDF
If you are looking for something that is not as heavy, but works optimally as the previous ones, MuPDF is for you. This lightweight open source application not only supports PDF format, but you can also see others such as XPS, CBZ, OpenXPS, EPUB and FictionBook. With it you can perform text searches, hyperlinks, annotate, fill in forms and electronic signature.
iLovePDF
All the tools that the aforementioned applications have come together in one; View, edit and modify, all this easily and for free. Among what is offered to you is: sign files, complete forms, add texts, convert documents to PDF, extract images, integrate watermarks, block and unlock protected documents and more. If you upgrade and purchase a Premium version you get more benefits and functionality, so if you work with this format, it will be very useful.
Polaris Office
This free app belongs to the Office suite and has tools similar to those of Microsoft Office, so it offers similarities such as text editing, database and spreadsheets, adding to this the playback and modification of PDF, TXT and HWP files. This office software also supports other formats such as DOC, DOCX, XLS, XLSX, PPT, PPTX, PPS, PPSX and ODT.
It is important to mention that in it you can create an account, since it has a default cloud, so you will have access from any device to one that is exclusive to your documents. Although, it also has access to others such as Drive, Dropbox and OneDrive.
PDFElement
The interface of this application is similar to that of Microsoft Word, so if you have worked with this it will be familiar and it will be easier to perform the actions. Among its tools we can mention the mark and annotate in PDF, highlight, underline, cross out, add text boxes, comments, copy content, etc. Although it is basic you can see, edit, convert, comment and sign everything you need. Being a multiplatform, you can have it on any computer and operating system.
Bookari Ebook Reader Free 
With this PDF reader you can read your files from your mobile because it has an action that allows you to place the screen vertically or horizontally as you wish. Similarly, you can view EPUB files , so if you are a lover of reading books in these formats, it will be very useful. It has text searches, annotations, bookmarks and others, including a night mode. It has two versions, one free and one paid, both offer quite good functions and best of all, it has a library where you can get your favorite works.
EBookDroid – PDF & DJVU Reader 
Like the previous one, it is perfect for lovers of PDF books, but this one is only available on Google Play. Similarly, accept the extension XPS, EPUB, RTF, MOBI, DjVu, FB2 and others such as CBR and CBZ. With this you can make dimensions and add notes, highlight, crop images, separate pages and more . In particular, this offers you a font assignment for PDF, text and dictionary selection, customization according to each book, document design and other useful settings.