Best Web-Based PDF Encryption Software of 2025

MobiPDF (formerly PDF Extra) is an intuitive reader and editor that allows you to read, edit, create, OCR, organize, annotate, fill and sign, convert, and share any PDF. This makes MobiPDF an excellent choice for users seeking a budget-friendly alternative to Adobe Acrobat Pro. HERE’S WHAT YOU GET WITH MOBIPDF: Multiple Page View Modes: Enjoy a distraction-free "Read Mode". Advanced Editing Tools: Experience a Word-like PDF editing environment. Two-Way Conversions: Convert PDFs to and from Word, Excel, PowerPoint, or image formats. OCR Support: Make scanned documents searchable. Markup Tools: Highlight, comment, strikethrough, stamp, and more to enhance your documents. Effortless PDF Organizer: Reorder, compress, split, and combine PDFs with ease. Sign & Secure: Add signatures, create and fill forms, and protect your PDFs with passwords, encryption, and digital certificates. Offline Mode: Work freely on your projects, even offline. Seamless translation: One-click translate any PDF into 50+ languages.

Smallpdf, a Swiss company, is made in Switzerland, the land where watches, banks and clean design are all present. Smallpdf has won numerous awards for its innovative document management tools. Smallpdf was founded in 2013 and provides a simple, reliable, and secure solution to complex, awkward PDF software. Smallpdf is the most trusted and loved PDF software on the planet. It has served over 500 million users and 100,000 companies in 24 languages and in every country around the globe, including Antarctica. Smallpdf seamlessly integrates with professional and personal tasks, increasing productivity and simplifying how people manage their documents. With tools to compress, convert and edit, sign, protect and unlock PDF documents in just few steps,

Online PDF tools that are free and easy to use. PDF24 is a project by geek software GmbH, a German company founded in 2006. PDF24 provides easy-to-use PDF solutions to many PDF problems online and as software downloads. The PDF24 Creator and PDF24 online tools are two of the solutions. PDF24 is a small agile team that focuses on the development and improvement PDF solutions. PDF24 is a small team that is passionate about PDF and loves to help people with PDF problems around the world. We have created the PDF24 Creator and PDF24 online tools, which are used daily by millions around the globe. This has been achieved in just a few years. PDF24 also offers PDF24 Faxe, an online fax service that allows people to send and receive messages online without the need for a fax machine.

Watermark PDF, Add to PDF, Query PDF, Convert to PDF, PDF to Images, Convert PDF Colors, Convert to PDF/A, Convert to PDF/X, Compress PDF, Linearize PDF, Flatten Annotations, Flatten Layers, Flatten Transparencies, Merge PDFs, Split PDF, Encrypt PDF, Decrypt PDF, Restrict PDF, Extract Text, OCR PDF, Upload Files, Zip Files. Our RESTful API is ready for production, so you don't have to reinvent the wheel when creating your own products and solutions. You have full control over your backend infrastructure. Our private cloud service allows you to control the entire process, including the documents. pdfRest API Toolkit Self-Hosted can be set up in just a few clicks from the AWS Marketplace. You can self-host a production-ready server to integrate the API in your own service or to automate your internal document workflow. Pay-as-you go pricing. Many business applications require complete ownership of your backend with very little or no communication with outside servers. You can create an EC2 instance to host our API, which will give you complete ownership of all files on your server.

pdfRest API Toolkit was made by developers, for developers. Rapidly integrate PDF workflows with your business applications, simply and seamlessly. pdfRest API Toolkit includes all the PDF processing tools you'll need, designed and developed by digital document experts with decades of experience to make your job easy: PDF to Word, PDF to Excel, PDF to PowerPoint, Add to PDF, Extract Text, Query PDF, Convert to PDF, PDF to Images, Convert to PDF/A, Convert to PDF/X, Compress PDF, Linearize PDF, Flatten Forms, Flatten Transparencies, Flatten Annotations, Flatten Layers, Merge PDFs, Split PDF, Encrypt PDF, Decrypt PDF, Restrict PDF, Watermark PDF, Import Form Data, Export Form Data, OCR PDF, Upload Files, Zip Files. Clear documentation with intuitive endpoints and parameters. Start with sample code in .NET, JavaScript, Python, PHP, and cURL for every endpoint. Gold-standard processing powered by Adobe® PDF Library™. Free to get started with no commitment. Affordable pricing for projects of all sizes. pdfRest was designed for developers, by developers to make working with PDFs as easy and intuitive as possible. Flexible APIs can be called from any language capable of making an API request. Send your first API call in

Foxit PDF Editor allows you to edit, view, create, organize, share, collaborate, secure, OCR, export and esign your PDF documents. Suitable for both SMBs and Enterprise, across desktop, mobile and web-whether you’re at the office, home or on the go. Affordable and easy to use with a low learning curve, which is perfect for remote workers and global companies, who can share, collaborate and provide feedback 24/7, anywhere in the world. Foxit PDF Editor is suited for individuals and groups who have to create, review, edit, manage, share and secure PDF documents. Foxit PDF Editor Pro offers additional features, including editing, collaboration and security capabilities which are often required in larger sized companies.

SodaPDF is the software solution that will help your business achieve any document goal quickly and easily. You can edit, create, convert and sign PDFs according to your requirements. Use the best PDF editor and converter to modify documents. Our PDF tools are easy to use and can be used to simplify any document workflow. Our Batch tool is the fastest Microsoft Office-to PDF converter on the market. It allows you to create multiple PDFs or convert them all at once. You can also add page numbers, watermarks and Bates numbers to multiple files or folders. Our E-Sign feature allows you to sign, manage and track electronic signatures remotely. OCR Edit saves time and eliminates the need to retype text. It allows you to quickly search, recognize and modify any image or scanned document. Access the entire Soda PDF suite of tools and services from your desktop or any device that has a web browser.

Locklizard protects PDF files from piracy, leakage, and misuse. Unauthorized access to documents is prevented and only authorized users are allowed to use them. Stop the theft of confidential and sensitive information, intellectual properties, training courses, reports, ebooks, and other trade secrets. Securely share and sell documents, prevent data leakage, and enforce compliance. You can lock documents to devices and locations, dynamically add watermarks, control expiry, stop printing and copying, and revoke access at anytime. You can track how your documents are used. Locklizard employs strong encryption, DRM, and licensing controls that are US Gov strength to ensure that your documents remain fully secure regardless of where they are located.

Icecream PDF Editor is a free, intuitive PDF editor for Windows. It allows you to create and modify PDF files. There are four main modes of PDF editing: Edit, Annotate and Manage pages. You can also fill in forms. The PDF editor allows you to edit text and objects, add comments, manage pages, merge PDFs and protect files. The best PDF Editor will greatly increase your productivity while managing your PDF files. You can edit any text in a PDF file with ease. Visually combine, reorder, split, and merge PDF pages. Create PDF documents easily from scratch. For document protection, you can set passwords or limit editing/copying rights. In-built forms can be completed in PDF documents. You can add notes, highlight areas and strike through or highlight text. Quickly search through the document before editing. For faster and better PDF proofreading, create custom stamps.

Online PDF editor and form filler. PDFescape is an online PDF reader, editor and form filler that is free. PDFescape is a new way to view and edit PDF files online. It does away with the usual software requirements for the de facto file format. PDFescape is completely online and requires only a modern internet browser. PDF files can be edited with text, shapes, whiteout, and many other features. Crop, deskew, move, delete, & insert PDF pages. Link to other PDF pages and web content. Change PDF information tags. Use a password to encrypt PDF contents. You can add images to PDF files. Use your scanned signature to sign PDF documents Use existing form fields to fill out PDF forms or use the text tool. PDF text, radio, list and drop-down fields are supported. Basic PDF field formatting and calculation supported. Basic styling properties for PDF fields are supported. You can quickly tab between fields.

Drag and drop files from Windows Explorer to PaperScan. Information about the resolution, size, and color mode of an image. Encryption of PDFs Paperscan can read encrypted PDFs, and can create encrypted PDFs. Bitonal filters can be used to remove isolated dots and to dilate/erode characters. Apply contour, scanline or sepia effects. Freehand pen and rubber stamp, ruler and polygon ruler, highlighter and freehand highlighter, automatic color detection, blank pages detection and removal and adjustment color (brightness,contrast, saturation, gamma).

FormatPDF is a website that offers a variety of online tools to work with PDF documents. These tools include PDF conversion, merging, splitting, compression and encryption, as well editing and annotating PDF files. FormatPDF allows users to convert a variety of document formats into PDF. This includes Word, Excel and PowerPoint. You can also merge multiple PDF files into one document or split large PDFs into smaller ones. FormatPDF.com provides tools for converting and manipulating PDF documents. FormatPDF.com also offers features to improve the security and quality of PDF documents. The website offers tools to compress PDF files. This can be used to reduce large documents' sizes for sharing and storage. If they have the right credentials, users can encrypt PDF files using passwords to restrict access or decrypt protected files.

PDF editor made for modern work. Simple to Convert and easy to edit. Manage all your PDF files in one place. Drag and drop your PDF file into PDF Master. Add elements (text, images, etc.) Using the editor. Download, share or approve the modified document. Our converter uses advanced encryption to protect your sensitive data during the conversion process. We protect your privacy with industry-standard encryption. No need to install any apps or extensions. Convert files to and from popular operating systems including Windows, macOS and Android. Convert files on any device, anywhere, and at any time using your browser. No technical knowledge required. You can upload or drag&drop a file onto the platform. Choose the format and edit it as you wish.

DRM-X 4.0 content security platform with new security architecture. Securely distribute protected audio/video, PDF, web pages, images, and Javascript to Windows and Mac, iPhone/iPad, Android, and Android. DRM-X 4.0 protection can eliminate the problem of piracy preventing you from selling or delivering these contents. DRM-X is Haihaisoft's digital rights management system platform. Haihaisoft offers DRM as a service. The copy protection platform includes File Encryption and Audio/Video Encryption as well as PDF Encryption and Web Page (HTML DRM Encryption). All of these features are available with DRMX 4.0 advanced DRM features. You can also manage rights, users, and license profiles online through your DRMX account. DRM-X 4.0, a new DRM software platform, is based on Xvast browser. It features a new security architecture, online and offline playback, and improved user experience. DRM-X allows dynamic watermarking of digital content.

Files can be safely uploaded via encrypted connections. Files stay secure. After processing, files are permanently deleted. Images are saved as JPEG images with a quality of 65%. This is sufficient for most situations. You can however, configure the optimized images to have a higher quality (even though the PDF size will be greater). Files can be uploaded securely over an encrypted connection. Files stay secure. After processing, files are permanently deleted.

With PDF library SDK, you can seamlessly integrate PDF editing, parsing, and rendering functions into your projects. Multi-platform shared library (dll.so and dylib), with a C-compatible interface. C#.Net, Python, Java 8, C++ 11, libraries/modules. APIs for Linux and Windows. Many interface functions are available to transform and create new content for PDF files. This allows for wide flexibility and a wide range of options, allowing for tailor-made implementations that meet your specific project's needs. Follow the portable document format specification guidelines to ensure efficient use of multi-core CPUs. Use electronic signatures, with or without cryptographic security layer. Encryption and decryption of PDFs (using a password-based encryption handler). Document structure manipulation (create/delete, move, insert and extract pages), resize and rotate pages.

PDFTool is an online PDF tool that prioritizes privacy. You can easily merge PDFs, split them and detect text within scanned PDF files without having to create an account or visit a website that is cluttered with ads. All processing is done directly in the browser. You can even go offline once you have opened the tool page. This will ensure that no one can view your PDF documents.