Android PDF Viewer API - Show PDF Pages in Your App

PDF, the Portable Document Format, was created by Adobe in 1993 and is now the ISO 32000 standard for fixed-layout documents. Invoices, contracts, reports and manuals - most documents that must look identical everywhere - are distributed as PDF, which makes a dependable viewer a baseline requirement for almost any Android app.

GroupDocs.Viewer Cloud supplies that viewer as a service. Each page is rendered on the server into HTML, JPG or PNG, so an app shows crisp output without bundling a rendering library. A password can be supplied with the request for protected files, a request may name only the pages it wants, and thumbnails, zoom and page navigation are available as well.

An Android SDK for Java, published for Gradle and Maven, reduces authentication and calls to a few lines, and samples show the complete flow. One integration then reads 180+ formats - Word files, workbooks, images - from this same endpoint.

For a file already on the device, the GroupDocs.Viewer app on the web produces the same pages with no code at all. Developers can open a free trial and try requests in the API Explorer.


  • View PDF Online via Java
  • View PDF Online via cURL
  • View PDF Online via Python
  • View PDF Online via Node.js
  • View PDF Online via Ruby
  • View PDF Online via Go
  • View PDF Online via .NET
  • View PDF Online via PHP

Android PDF Viewer API - Show PDF Pages in Your App

View PDF and other Popular Formats for Free

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How to view PDF file online

  • Select the file by clicking the PDF App or simply drag & drop a PDF file.
  • Click the Open button to upload and view PDF file.
  • That is all! You can view your PDF document online.

Frequently Asked Questions

What features does GroupDocs.Viewer Cloud offer?

GroupDocs.Viewer Cloud provides various features, such as zooming, paging, searching within documents, text selection, and rendering options. You can render specific pages, generate document thumbnails, or even render documents as images.

Are there SDKs available for GroupDocs.Viewer Cloud APIs?

Yes, GroupDocs provides SDKs for various programming languages to simplify the integration and utilization of Viewer Cloud APIs in your applications.

Is there a limit on the number of document views I can generate using GroupDocs.Viewer Cloud APIs?

GroupDocs.Viewer Cloud APIs offer flexible limits on the number of document views based on your subscription plan. Contact GroupDocs support for more details on view limits.

Are there any limitations or usage restrictions with GroupDocs.Viewer Cloud?

GroupDocs.Viewer Cloud has certain usage limits depending on the subscription plan you choose. These limits may include the number of API requests, document size, or the number of concurrent connections. Its recommended to review the pricing and plans to understand the specific limitations.

What file formats are supported by GroupDocs.Viewer Cloud APIs?

GroupDocs.Viewer Cloud APIs support a wide range of file formats including PDF, Word, Excel, and more.

I want to create my own app that can view PDF file online?

Check our Cloud SDKs at GitHub if you are looking for the source code to view PDF file format in the Cloud.

How is GroupDocs.Viewer Cloud called from an Android application?

Through its Java SDK. Put the library in your Gradle build, authenticate once, then submit a document and read the pages that come back. Output format is chosen per request: markup, images or a PDF rendition.

How can I integrate GroupDocs.Viewer Cloud into my application?

Integration is done through APIs provided by GroupDocs.Viewer Cloud. The service offers APIs for different programming languages and platforms, making it convenient for developers to incorporate document viewing capabilities into their applications or websites.

How secure is the document viewing process in GroupDocs.Viewer Cloud?

GroupDocs.Viewer Cloud ensures a secure document viewing process with data encryption, secure protocols, and adherence to data protection standards.

What document formats does GroupDocs.Viewer Cloud support?

GroupDocs.Viewer Cloud supports a wide range of document formats, including PDF, Microsoft Word (DOC, DOCX), Excel (XLS, XLSX), PowerPoint (PPT, PPTX), images (JPEG, PNG, GIF, TIFF), and more.

Can the API open password-protected PDF files?

Yes. Supply the document password with the render request and the protected file is opened and returned as HTML, JPG or PNG pages.

Portable Document Format File (PDF) Viewer REST API

PDF REST APIs are secured and require authentication

Render PDF files using a single API call

View PDF as HTML5

View PDF with its attachments

View PDF as PDF

View PDF as Images like BMP, PNG, JPEG & TIFF

Get PDF document information like page & attachment count as well as properties

Rotate, reorder & watermark PDF pages

View PDF and hundreds of other formats from CAD, Word, PowerPoint, Excel, Email & eBook

Minify PDF Output Content

One of the most exciting features of our Cloud-based viewer API for PDF is its ability to minify the output content. Minification removes comments, extra white-spaces, and other unneeded characters without breaking the content structure. As a result, the page becomes smaller in size and loads faster.

Text selection

Users can select, copy, and paste text directly from documents, making it easy to extract and use information from the content.

Free online PDF viewer supports over 186 file formats

The cloud-based viewer API for PDF has the ability to display different document formats quickly, with just a few lines of code. Using the SDK for Android you can find out about the various document formats supported by the SDK.

GroupDocs.Viewer Cloud REST API Explorer

The easiest way to try out GroupDocs.Conversion Cloud API right away in your browser is by using GroupDocs Cloud Web API explorer, which is a collection of Swagger documentation for the GroupDocs Cloud APIs.It allows you to effortlessly interact and try out every single operation our APIs exposes.

Free Apps support show or hide document comments

API Allows to view and comments embedded inside supported documents types.

Free Alternative to Desktop & Mobile PDF Viewer Apps

GroupDocs.Viewer Cloud app does not need any installation or setup to view PDF. You can quickly start using the Viewer App in your browser to view any number of files per day absolutely free of charge.

Show or hide document headers and footers

GroupDocs.Viewer Cloud APIs supports rendering of headers and footers.

Integration capabilities

Developers can easily integrate the Viewer Cloud APIs into their applications to enable users to view documents directly within the application interface without the need to download them.

Zooming functionality

The Viewer Cloud APIs provide zooming capabilities, allowing users to zoom in and out of document pages to view content in more detail or from a broader perspective.

Programmatically get list of supported file types.

Use our REST API to get list of 186 supported document types.

Render PDF files to remote FTP or Cloud storage

Use third-party cloud storage to save your PDF rendered files.

  • Amazon S3
  • Azure Storage
  • Google Cloud Storage
  • Google Drive
  • Dropbox
  • Box
  • FTP

Self-host PDF Cloud Viewer Free App

The GroupDocs.Viewer Cloud Container Image enables users to self-host GroupDocs.Viewer Cloud for PDF using Docker.

Wide range of document format support

GroupDocs.Viewer Cloud APIs and FREE Apps support a variety of document formats including PDF, Microsoft Office (Word, Excel, PowerPoint), AutoCAD, image files (PNG, JPEG), and more.

Free Apps availability

Users can access and utilize FREE Apps for document viewing and annotation online, providing a convenient and cost-effective solution for accessing and interacting with document content.

Page navigation

The APIs offer intuitive page navigation features that allow users to navigate through document pages easily and efficiently.

Online document viewing

Users can view documents online without the hassle of downloading them first, providing a convenient and efficient way to access and interact with document content.

Extract document text while rendering in image mode

Our API allows extract text from documents

Printing support

Users can print documents directly from the viewer, enabling them to easily generate physical copies of the document content if needed.

Flexible Rendering of PDF Documents

GroupDocs.Viewer is a powerful document viewer REST API that allows you to display over 186 document formats in your applications. It allows rendering of PDF for the whole document, page by page or custom range of pages.

Support and Learning Resources

View PDF using SDKs in other popular languages

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