List of the Top 12 PDF Encryption Apps for Android in 2025

MobiPDF, previously known as PDF Extra, serves as a user-friendly platform for reading and editing PDFs, offering features such as creating, organizing, annotating, filling, signing, converting, and sharing any PDF file. This versatile tool stands out as a cost-effective substitute for Adobe Acrobat Pro, catering to a wide array of user needs. HERE’S WHAT YOU CAN EXPECT WITH MOBIPDF: Multiple Viewing Options: Utilize a focused "Read Mode" for an uninterrupted reading experience. Sophisticated Editing Capabilities: Engage with a PDF editing interface reminiscent of Word. Bidirectional Conversions: Effortlessly transform PDFs into and from formats like Word, Excel, PowerPoint, or images. OCR Integration: Enhance scanned documents by making them searchable. Annotation Features: Utilize tools to highlight, comment, strikethrough, stamp, and more to improve your documents. Simple PDF Management: Easily reorder, compress, split, and merge PDFs as you need. Signing and Security: Incorporate signatures, create and fill out forms, and safeguard your PDFs with passwords, encryption, and digital certificates. Offline Functionality: Continue working on your files without needing an internet connection. Instant Translation: Translate any PDF into over 50 languages with just a click. Overall, MobiPDF combines essential features and user-friendly design, making it a reliable choice for anyone needing comprehensive PDF tools.

Foxit PDF Editor provides a comprehensive set of tools for editing, viewing, creating, organizing, sharing, collaborating, securing, OCR processing, exporting, and e-signing PDF documents. It caters to both small and medium-sized businesses as well as larger enterprises, and is accessible across various platforms including desktop, mobile, and web—making it convenient for use at home, in the office, or while traveling. Its affordability and user-friendly design ensure that even those new to the software can quickly get up to speed, which is especially beneficial for remote workers and international teams who need to communicate and provide feedback around the clock from any location. The software is ideal for both individuals and teams tasked with the creation, review, editing, management, sharing, and securing of PDF files. For larger organizations, Foxit PDF Editor Pro includes enhanced features such as advanced editing, collaboration tools, and robust security options that are often necessary in more complex business environments. In this way, Foxit PDF Editor enables seamless workflows and enhances productivity across various industries.

Adobe Acrobat provides your team with smooth connectivity through streamlined workflows accessible on desktop, mobile, and web platforms, regardless of where you work. As your needs evolve, your methods of working must also adapt. This is why we continually strive to enhance and roll out new features within Adobe Acrobat. By choosing Adobe Acrobat Pro, you gain instant access to the newest functionalities as they are released. Currently, more than five million organizations around the globe rely on Acrobat DC for tasks like creating and editing sophisticated PDFs, converting them into Microsoft Office formats, and much more. Whether you are on the go or collaborating with teammates situated in different locations, you can trust Adobe Acrobat to help you manage your tasks efficiently. The platform allows you to share PDFs for viewing, reviewing, and signing from any device and location, enabling you to easily monitor the progress of your documents and ensuring seamless collaboration. Additionally, Adobe Acrobat's adaptability empowers teams to thrive in any work environment, promoting both productivity and creativity while simplifying the workflow process. In this rapidly changing landscape, having a reliable tool like Adobe Acrobat can make a significant difference in achieving your goals.

Smallpdf, hailing from Switzerland—a country renowned for its precision in watchmaking, banking excellence, and minimalist design—has garnered multiple accolades for its cutting-edge document management solutions. Established in 2013, the company offers a straightforward, dependable, and secure alternative to cumbersome PDF software options. With a user base exceeding 500 million individuals and 100,000 businesses across 24 languages and every corner of the globe, including the remote regions of Antarctica, Smallpdf has become the go-to choice for PDF management. Its tools are designed to enhance both professional and personal workflows, thereby boosting efficiency and transforming document handling into a hassle-free experience. Users can easily compress, convert, edit, sign, protect, and unlock PDFs in just a few simple steps, making document management more accessible than ever before. This commitment to user-friendliness has solidified Smallpdf's reputation as a beloved resource for anyone dealing with PDF files.

PDF24 offers a variety of easy-to-use online tools for handling PDF files, created by geek software GmbH, a German company that has been in operation since 2006. This platform provides free solutions for numerous PDF-related issues, accessible through both downloadable software and web applications, with the widely-used PDF24 Creator being among them. Though they operate with a small team, the PDF24 staff is passionately dedicated to improving PDF solutions that serve countless users around the world. Their commitment has resulted in the successful introduction of the PDF24 Creator and a range of online tools that have attracted millions of users globally. Additionally, PDF24 includes PDF24 Fax, an online service that allows users to send and receive faxes without the need for a physical fax machine. The ongoing focus on innovation ensures that PDF24 remains a trusted source for all PDF-related needs, continually evolving to meet the demands of its users. Furthermore, the user-friendly interface of PDF24 tools enhances the overall experience, making document management seamless and efficient.

Protect your sensitive information with AES 256-bit military-grade encryption or secure your files from unauthorized viewing to avoid any invasive scrutiny! With Folder Lock, you can swiftly lock and hide files and folders in just a few seconds. This robust application empowers you to implement password protection, guaranteeing that no one can access your files, folders, or drives without your consent. Once a folder is secured, it vanishes from its original location and can only be accessed through the software interface. Folder Lock acts as a virtual safe, creating secure 'Lockers' for your important data. Picture storing your files in a digital ‘Locker’ that offers more security than a bank vault! Setting up these ‘Lockers’ is a breeze with AES 256-bit encryption. You won’t need to worry about manually encrypting or decrypting files when you wish to view them; simply copy them into the Locker, and they will be automatically secured. Furthermore, Folder Lock features a dual encryption and backup solution, enabling you to seamlessly back up your encrypted ‘Lockers’ online for additional security. This capability not only strengthens your data protection but also provides peace of mind, assuring you that your files are shielded from unwanted scrutiny. By utilizing this tool, you can confidently manage your digital privacy and ensure that your important information remains inaccessible to others.

AxCrypt delivers robust file and password protection for both individuals and organizations, utilizing 256-bit AES encryption compatible with Windows, macOS, iOS, and Android platforms. Its cloud storage integration and key-sharing capabilities enable seamless collaboration with team members on platforms such as Google Drive, Dropbox, and OneDrive, ensuring compliance with data protection regulations while safeguarding against expensive data breaches. By opting for AxCrypt Premium or Business, users gain additional features, including a comprehensive Password Management system for securely storing and managing codes and passwords. Furthermore, AxCrypt is accessible in more than 14 languages, including English, French, Spanish, Italian, and German, making it a versatile choice for a global audience. This extensive language support ensures that users from diverse linguistic backgrounds can easily navigate and utilize the software.

PDFelement serves as an all-in-one PDF solution driven by artificial intelligence, providing a quick, intelligent, cost-effective, and user-friendly approach to handling PDF documents on desktop, mobile, and web platforms. It ensures an exceptional user experience, making it a strong alternative to Adobe® Acrobat® that suits both individuals and small businesses perfectly. The company is dedicated to leading the PDF technology landscape by continuously innovating and enhancing its product to adapt to the changing needs of its users. Key features that set it apart include: Intelligent: It offers the most advanced method for managing PDF forms and documents, utilizing AI capabilities. Versatile: The desktop application is accessible through an annual or perpetual license fee, providing flexibility to users. Cost-effective: It provides features that rival those of Adobe Acrobat DC while being available at a significantly reduced price, offering savings of up to 50%. Extremely Fast: The software is designed to be lightweight, ensuring that even beginners enjoy a smoother user experience with a minimal learning curve. In addition, PDFelement’s commitment to user satisfaction is evident in its regular updates and responsive customer support.

Locklizard safeguards PDF files against unauthorized access, preventing piracy, leakage, and misuse, ensuring that only individuals with the proper authorization can access the documents. Protect your confidential information, including sensitive data, intellectual properties, training materials, reports, ebooks, and trade secrets from theft. It enables secure sharing and selling of documents while effectively preventing data leakage and ensuring compliance with regulations. With Locklizard, you can lock documents to specific devices and locations, apply dynamic watermarks, control document expiration, and disable printing and copying features, as well as revoke access whenever necessary. Additionally, it provides the capability to monitor document usage for enhanced security. Utilizing robust encryption, digital rights management (DRM), and licensing controls that meet US government standards, Locklizard guarantees that your documents remain fully protected, no matter where they are accessed from. This comprehensive approach not only secures your content but also instills confidence in users regarding the integrity of their sensitive information.

Xvast is a rapid and secure web browser based on the robust foundation of Chrome, equipped with the latest HTML5 features, including a media playlist and PDF viewer, as well as encrypted PDF DRM functionality. It supports DRM-X 4.0 protection, enabling users to effortlessly access premium content that is safeguarded. The browser is designed to encrypt multiple file types, such as web pages (HTM, HTML), audio, video, PDFs, images, and JavaScript, ensuring security across various formats. With its integrated HTML5 Video DRM protection, users can enjoy high-definition video playback regardless of whether they are online or offline. Recent enhancements have brought about improved security measures, memory optimization, a convenient PDF download button, and clearer error messages for a better user experience. Furthermore, Xvast facilitates the import of files from third-party applications directly into iOS and rectifies issues related to messy coding on non-UTF8 webpages, allowing for an optimal display of content. The core engine of Xvast has been updated to Chrome 85, which resolves the Android 10 spin crash issue, leading to smoother audio streaming and high-definition video playback while also extending battery life. As Xvast continues to develop, it is committed to refining the browsing journey with each new update that is released. The ongoing advancements not only improve functionality but also enhance user satisfaction significantly.

The content protection system known as DRM-X 4.0 presents an advanced security framework along with a range of sophisticated security features. This platform facilitates the secure distribution of a variety of protected content types, including audio and video files, PDF documents, web pages, images, and JavaScript, across multiple devices such as Windows, Mac, iPhone/iPad, and Android systems. By implementing DRM-X 4.0, users can effectively confront the challenges posed by piracy in content delivery and sales. Created by Haihaisoft, this digital rights management solution functions as a service, providing a comprehensive suite of protective features. Essential elements of the DRM-X platform comprise File Encryption, Audio/Video Encryption, PDF Encryption, and HTML DRM Encryption, all seamlessly integrated with cutting-edge DRM capabilities. Users are empowered to easily manage their accounts, oversee groups, and modify rights and license profiles through an online interface. As a state-of-the-art DRM software platform built on the Xvast browser, DRM-X 4.0 accommodates both online and offline playback, thereby enhancing the overall user experience significantly. Furthermore, it includes dynamic watermarking options for protected digital assets, providing an additional layer of security for content. This innovative system not only aims to fortify the protection of intellectual property but also seeks to empower creators by equipping them with essential tools to safeguard their work effectively. Ultimately, DRM-X 4.0 represents a crucial step forward in the realm of digital rights management, ensuring that creators can thrive in a secure environment.

PDF Unshare is a tool designed to protect PDF files by generating unshared versions that block unauthorized actions such as sharing, printing, editing, copying, or access. This cutting-edge software for document protection allows users to set an expiration date for the safeguarded PDFs, guaranteeing that these documents will no longer be accessible after the designated timeframe. It serves as an invaluable resource for entrepreneurs, publishers, and educational institutions aiming to stop unauthorized distribution of their content, whether online or to third parties. Furthermore, users can utilize the complimentary Unshared PDF reader, compatible with Windows PCs, laptops, iPhones, iPads, and Android devices, which also prevents screenshotting while viewing the document. Additionally, the application enables users to customize their documents with personalized watermark text and choose a specific color for the watermark, increasing the level of individualization for their protected files. By using this application, users not only enhance the security of their intellectual property but also retain more control over how their content is accessed and shared in various contexts. Ultimately, this robust tool ensures that sensitive information remains confidential while offering flexibility and user-friendly features for document management.