Best Web-Based PDF Annotators of 2024

Apryse, formerly PDFTron, is reimagining the world of documents. Bring accurate PDF viewing, annotating, editing, creation, and generation to any web, mobile, desktop or server framework or application. Apryse technology supports all major platforms and dozens of unique file types, including support for PDF, MS Office, and CAD formats. Own the full document and data lifecycle by deploying on your own infrastructure without worrying about third-party server dependencies.

PSPDFKit provides an extensive solution for all your PDF requirements, delivering tools that seamlessly operate PDF features across any platform. 1. SDK: Incorporate advanced PDF functionality into iOS, Android, Windows, web, or any cross-platform technology, supplying abilities like PDF viewing, annotation, collaboration, and beyond. 2. Libraries: Employ our powerful .NET and Java libraries to enhance your backend applications with batch processing of redactions and PDF forms, OCR'd scanned text, and PDF document editing, all directly from your application server. 3. Processor: Our agile PDF microservice, Processor, enables rapid generation of PDFs from HTML, including HTML forms, as well as Office-to-PDF conversions, OCR, redaction, and XFDF combining and exporting. 4. PDF API: Take advantage of our hosted PDF API to generate, convert, and alter PDF documents in your workflows. We handle the development and server management, freeing you up to concentrate on your business. At PSPDFKit, we're not just a tool; we're a committed ally in your success. Gain direct contact with our engineers for expert guidance, utilize comprehensive examples to simplify integration, and make the most of our top-tier documentation.

Global OEMs, SaaS and enterprise end-users rely on Adobe PDF Library to automate the creation, editing and management of PDFs. An Adobe partner, our SDK uses the same source code as Acrobat for stability, reliability and quality results. Languages: .NET, .NET Framework, Java and C/C++ Platforms: Windows, Linux & MacOS Package managers: NuGet & Maven Capabilities include but are not limited to: -Annotations -Content creation -Content modification -Color management -Extraction - text, images, forms -Compression/optimize -Conversion - PDF/A, PDF/X, EPS, PostScript, XPS, ZUGFeRD, color -Display, Printing -Extract text, images & other content -Forms - Import, export, flatten static & dynamic XFA forms, AcroForms -Images - extract, import/export, thumbnails, render/rasterize pages, separations -Optimization - size, content, images, etc. -OCR - add text to document, add text to image -PDF to Office Documents (Word, Excel, PPT) -Security - Viewer settings, redactions, password, encrypt/decryption, watermark Pricing options for OEMs, SaaS & end-users are flexible and based on usage. Shorten development times & get to market faster with Adobe PDF Library. Free trial - download today.

PDF Extra is an all-in-one suite that enables you to effortlessly read, edit, create, OCR, organize, annotate, fill & sign, convert, and share any PDF. Focused on ease of use, the app has all features you need placed front and center so that you can start using them right away, no manual required. This makes PDF Extra a great choice both for complete beginners and users looking for a powerful and budget-friendly Adobe Acrobat Pro replacement. HERE’S WHAT YOU GET WITH PDF EXTRA: Multiple page view modes and a distraction-free “Read Mode” Advanced editing tools for a Word-like PDF editing experience Two-way conversions: Word, Excel, PowerPoint, or images OCR support: make scanned documents searchable in seconds Markup tools: highlight, comment, strikethrough, stamp, and more Effortless PDF organizer: reorder, compress, split, and combine PDFs Sign & secure: add signatures, fill forms, and protect PDFs with passwords, encryption, and digital certificates Offline mode: work freely on your projects, even when you’re unplugged from the internet

SwifDoo PDF is an All-in-One PDF Maker, Reader, Editor and Converter for Windows SwifDoo PDF enables users to create, convert, merge, compress and sign PDF documents with minimum effort. The intuitive design tool also enables you to insert links or images to PDFs. The PDF document can be converted to Microsoft Word, Excel, PowerPoint, JPG, PNG, TIFF, BMP, and vice versa. You can also convert CAD to PDF. The PDF compression module integrated with SwifDoo PDF is optimized for file size without quality loss. SwifDoo PDF has a number of special features for scanning copy convert. Besides many convert features. PDF Reader PDF Annotation (Including Stamp) Picture/image Extraction (only need copy and paste from PDF) PDF Edit PDF Compress PDF Merge PDF Split PDF Signature System Requirements: Windows 10/7/8/vista/XP Edition: SwifDoo PDF 2.0.1.9

Install-free PDF editing, form filling, redaction, signing, viewing, and more on your website with RAD PDF! Packaged as an easy to use library / WebControl (compatible with .NET 3.5+, .NET Core, and .NET 5+), RAD PDF can be used with just about any flavor of ASP.NET including MVC, Razor, Blazor, WebForms, and more. RAD PDF is compatible with 99% of internet browsers, including those on Linux, Mac OS X, Microsoft Windows, and mobile. No plugins. No Adobe Reader. RAD PDF is more than a PDF to HTML converter. It natively supports all the most common PDF features including annotations, bookmarks, form fields, page labels, and more. With advanced PDF options, RAD PDF allows you to selectively enable and disable features not available with Adobe Acrobat Reader, like protecting a PDF from being downloaded while still viewable online. RAD PDF users can use PDF form fields directly from the web browser by enabling PDF form filling and PDF form saving without having to install any software. Integrating directly with ASP.NET, RAD PDF allows your web application to capture input data, build custom workflows, and provide an intuitive graphical user interface (GUI) for just about any online PDF interaction imaginable!

PDF Tools for you to be more productive with PDF documents. Free and easy to use! Add text, images, freehand annotations to PDF. Fill forms. Create your own signature and sign document. Send PDF files safely and securely with a link that automatically expires, zero-knowledge end-to-end encryption with 256-bit AES.

Add robust PDF features to your apps with the easy-to-integrate MuPDF SDK/ The small yet fast viewer supports a number of document formats including PDF, XPS, OpenXPS, CBZ, and ePUB. The renderer is designed for high-fidelity anti-aliased graphics and renders text with metrics and spacing accurate to within fractions of a pixel. The PDF library includes interactive features such as annotations, form filling, digital signatures, redactions, and search. The command-line tools provide users myriad customization options for rendering and converting documents, and manipulating PDF files. MuPDF supports document conversion to other formats including HTML, SVG, and CBZ. In addition to the C library, there's a Java library using JNI that works for both Oracle's Java and Android. In addition to the Java API, C++ and Python bindings have been developed. MuPDF supports most of the major coding environments and operating systems. It is highly flexible and optimized for each unique platform. MuPDF API has been used as the PDF engine in a variety of deployments ranging from Android and iOS mobile applications, SaaS and cloud solutions, document management programs, and embedded products, to name a few.

PDFgear is a PDF solution that allows users to view, edit, convert, sign annotate, organize and more on Windows, MacOS and iOS. PDFgear's clean and simple interface allows users to enjoy reading and editing documents without interruption. PDFgear Copilot is a personal assistant that offers more options than a standard document assistant. It's powered by AI so users can easily manipulate all the PDFgear features and chat with PDFs. You're lost in the vast array of functions and document content? Don't worry! Ask Copilot! You can ask Copilot anything! Processing PDFs is as easy as a stroll in the garden with PDFgear.

You can read, sign, annotate, comment on, and sign PDF documents. Foxit PDF Reader is a small and lightning fast PDF viewer that allows you to open, view, sign and print any PDF file. Foxit Reader is built on the industry's fastest (high fidelity) PDF rendering engine. It provides users with the best PDF viewing experience and printing experience. Available in English, Spanish, French, German and Dutch.

Our Adobe Acrobat Reader is free and allows you to view, sign, collaborate, annotate, and even sign PDFs. Acrobat Pro is available to create, convert, protect, and edit PDFs. Adobe Acrobat Reader is required to view, sign, track and share PDFs. Acrobat DC subscriptions are available if you need to do more. You can then edit, export, or send PDFs to signatures. You can do more than just view and open PDF files. It's easy to annotate PDF files and share them with others. This allows you to consolidate and collect comments from multiple reviewers into one shared online PDF. The Acrobat Reader mobile application allows you to work on documents from anywhere. It comes with all the tools that you need to edit, sign, and convert PDFs. You can capture documents, whiteboards, and receipts with your smartphone's camera and save them as PDFs. Acrobat Reader DC can be connected to Adobe Document Cloud so that you can access your PDFs from anywhere. You can access and store files in Box or Dropbox, Google Drive, Google Drive, Microsoft OneDrive, and Microsoft OneDrive.

TinyWow offers free online conversions, pdf, and other useful tools to help you solve all kinds of problems. After one hour, all files are deleted, both processed and unprocessed. Convert PDF to JPG, and download each page as a picture. Convert PDF to PNG, and download each page as a picture.

Xodo allows you to edit, annotate and sign PDFs on your desktop, mobile, or web. Xodo makes it easy to work with PDFs. No more printing or faxing! You can sign contracts, expense reports and cover letters on your smartphone or tablet with just your finger or stylus. It's that easy! Sign any document with just your finger, instead of searching for a pen or printing ink. You can save your signature and sign any future documents with just one tap or click of the mouse. Save the file and share it with anyone who needs it. It takes only seconds to do what used to take many emails back and forth. Xodo takes stress out of filling out forms. You can complete forms from your smartphone or tablet anywhere you are by simply tapping on the screen to fill in fields and selecting checkboxes. You can save time and energy. Fill out forms on your smartphone or tablet and save them to share with anyone who needs them.

Convert, merge, edit and compress PDFs in just a few simple clicks. Download your document quickly with ease. Our PDF converter creates PDF files in just seconds! When you create PDF files on our platform, we use HTTPS encryption to secure your digital data. Redact a pdf, modify text, create new objects and perform many other actions in one place. Our PDF creator has an intuitive interface that allows you to use it without any hassle. Our PDF creator works online on all platforms: Windows, Mac OS, Linux and iOS. You can restrict or lock your file if you don't wish others to be able to open, edit or print it.

PDF.live allows you to convert PDFs into any other file format and vice versa. Convert Word documents, Excel sheets, PowerPoint presentations, and JPEGs. PDF.live works on any device connected to the internet and is cloud-based. This means that you don't have to download or install anything. Simply drag the document and follow the prompts to sign, annotate and edit text. You can also compress, merge, and compress your documents with this free online PDF editor.

All-in-one online PDF editor, free of subscriptions and installations DeftPDF is an online tool that allows you to edit and convert your PDF files in just a few clicks.

Wondershare HiPDF is an AI-powered online PDF solution that offers a wide range of features such as chatting with PDF, AI reading, editing, converting, OCR, signing and managing PDF documents. It also provides many image tools. HiPDF is easy to use and has a free plan. It allows users to easily summarize, explain, rewrite, merge, split, compress, convert, rotate, unlock, and protect PDF files with just a few clicks. As a member of the PDF Association and having received internationally recognized certifications such as ISO 27001 and SSI SECURE, HiPDF ensures both simplicity and security in editing PDFs, having processed millions of files cumulatively. Top Features: AI read: Summarize, rewrite, explain and chat with PDFs with the AI PDF reading assistant. Convert PDF: Convert PDF documents to and from any Microsoft Office format or image. Merge PDF: Combine PDF files online. Compress PDF: Reduce the size of your PDFs online easily. Sign PDF: Quickly and securely fill and sign PDFs from any device, anytime, anywhere. Protect PDF: Protect PDF from copying, editing, printing and viewing with passwords. Keep sensitive data confidential.

Conholdate.Total is the complete package for all.NET APIs offered by Aspose or GroupDocs. This allows developers to perform a wide variety of document processing tasks within their own.NET based apps. This.NET package provides all-in-one solutions for all types document management systems. It allows you to create, edit and print, view, sign, compare, sign, automate and convert between a variety of popular document formats. Conholdate.NET allows you to process a multitude of file formats. File formats can be opened, modified, converted, and modified easily. Conholdate.Total.NET currently supports the following file types: Microsoft Word documents Microsoft Excel spreadsheets Microsoft PowerPoint presentations Adobe PDF documents Microsoft Outlook Microsoft Project files More than 100 other file formats

LightPDF was created to make it easy for anyone to use PDF documents. LightPDF has an intuitive interface. This program allows you to read, edit, and convert PDF documents. Built-in PDF editing capabilities: 1. Modify a PDF: Add text, annotate and insert links. You can also add headers or footers. 2. Convert PDF to Word, Excel, PPT or JPG. 3. Manage PDF pages: Insert or delete pages, rotate pages and extract, replace, split, or merge pages. 4. Sign a PDF: Add a manual signature or digital signature. 5. Lock PDF: Add a password for your PDF document. 6. Other tools: OCR and compress PDF, add background, etc.

You can create and modify PDF documents. Split, append and stamp PDF documents. Encrypt, extract, fill and encrypt them. PDFKit.NET is a 100% managed.NET class library that allows you to create and manipulate PDF documents. It is a single assembly that can easily be xcopy-deployed. It does not have any dependencies beyond the.NET framework. PDFKit.NET's object model is consistent and intuitive. It includes classes such as document, page collection. page, canvas, bookmark, annotation, field, shape, bookmark, annotations, field, and so on. The development team focuses on making it easy to integrate our class library into larger applications. Fill in text fields, radio buttons, checkboxes, etc. and save the form as editable or flattened using PDFKit.NET 5.0. With PDFKit.NET 5.0, you can create and consume dynamic XFA files using the new XFA processor. PDFKit.NET 5.0 allows you to extract all graphics from a page and create a collection of shapes. You can use shapes to represent text, images, or curves.

A web-based PDF and Kindle annotation management system that will save you hours of tedious work. In a matter of seconds, you can have your PDF annotations and Kindle annotations ready for download in different formats. We can summarize annotations from PDFs, Kindle books, and Instapaper articles. You don't have to search for an annotation tool that can be used to extract annotations from PDFs or books. Sumnotes is the best, most simple and robust way to extract annotations from PDF books. You can import and sync annotations from multiple platforms with one click. Importing your entire library is easy with our batch import capability. We support PDF documents that have been annotated in any PDF software, including Adobe products or Preview on Macs. We are excited to announce that we now support Kindle highlights!

SmartOffice allows you to view, edit, create and print Microsoft Office and PDF documents from your mobile device. SmartOffice PDF allows you to view, annotate and highlight PDF documents. Convert Office documents into PDF, save to your mobile device, or to a cloud account and print wirelessly to thousands supported printers. SmartOffice Mobile App This app is a full-featured alternative to MS Office 365. SmartOffice can be downloaded from GooglePlay or the AppStore for personal use. SmartOffice can also be wrapped in an enterprise security platform that will enable mobile productivity. SmartOffice SDK SmartOffice offers many solutions that can be seamlessly integrated into your enterprise document workflow platform. SmartOffice SDK seamlessly integrates with your EFSS or MDM environment. SmartOffice mobile app can also be wrapped in an enterprise security platform.

This document and image cleanup and processing toolkit allows developers the ability to quickly integrate document handling functions such as image manipulation, compression, manipulation, manipulation, manipulation, editing, manipulation, compression and image enhancement into their applications. ImageGear allows your application to clean up files such as deskew, line, and speckle removal, among others. ImageGear's color-processing tools can be used to improve image quality and reduce compressed file sizes. This SDK for image processing and document cleaning includes many APIs that allow image processing and clean-up. ImageGear can help you add functionality to your applications. Learn how ImageGear can meet all of your document lifecycle requirements. This PDF SDK allows.NET developers add robust PDF functionality to their applications. Users can view, annotate and compress pages. Discover all the PDF manipulation capabilities of ImageGear PDF and how it can enhance your application.

Solutions for document processing, analysis, and conversion. Innovative solutions for document imaging, document management. Imaging technologies. We have been developing solutions for managing electronic documents locally and online since 2003. Below is a list of technologies that ORPALIS uses: Full PDF support. View, process, annotate and compress all PDFs using WIA and TWAIN scanning. All scanners and acquisition devices can be managed. Barcode reading and writing. 1D and 2D (Datamatrix. QR-Code. Micro QR-Code. PDF417. Hyper-compression Mixed raster. Content compression, Color Detection and JBIG2 & JPEG 2000 compress. Formats support. View and convert documents in more than 100 formats. Optical Character Recognition, (OCR) Extract text from scanned images. Recognition of form/templates. Form processing and automatic document recognition. Annotations. You can use a variety of tools to annotate documents online and offline.

This is the well-known SDK that works with Android, iOS, and Windows UWP. It was developed by our team in 2012, and began to be used as a tool for Android, iOS and Windows UWP. We have not stopped improving it since. RadaeePDF Classic offers fully customizable frameworks in Java, Objective C and C#. The range is completed with simplified Cordova (Android) and Xamarin (iOS) plugins. RadaeePDF Classic SDK is used by over 6000 SMBs and large corporations in over 8500 applications. It includes PDF read, different rendering formats, support for PDF annotations, text search, and extraction, among many other features. The Master Edition is a significant step up from the Classic version. It includes advanced features such as complete form fields manipulation, pdf optimization, xfdf export/import, signature and certificate handling, as well as advanced features such a PDF read, different rendering layouts, support for PDF annotations, text search and extraction, and many more.