Android PDF Library

  衆多的開發人員和用戶都在苦苦尋找一個在安卓平臺上便於使用pdf的產品。在這篇文章裏，咱們會揭開全部你所須要的關於安卓pdf庫的信息，讓你更輕鬆的在安卓平臺上用到pdf.

  Part 01: Android PDF Library, Android PDF Writer 和Android PFD SDK的區別

  Part 02: Top 5 Android PDF Library/SDK

Part 01: Android PDF Library, Android PDF Writer 和Android PFD SDK的區別

Android PDF Library是一個高質量的Android創新產物，使用Java API，使開發者和用戶在安卓平臺上無縫地集成PDF的生成，註釋，搜索，處理，閱讀，渲染和打印等功能。

與複雜的Android PDF Library不一樣， Android PDF writer (APW) 是一種簡單的java庫， 開源的BSD license解放了安卓設備的用戶們，使之能夠輕鬆生成簡單的PDF文檔。它是免費開源的軟件，你能夠下載並用於我的或組織機構使用。

 

Android PDF Library 和 Android PDF writer 有什麼聯繫？

那麼二者又有什麼聯繫呢？ Android PDF writer 只能執行一些簡單的操做，而Anrdoid PDF library則能承擔更高水平的操做，擁有更多的其餘功能。好比他們都能生成PDF文檔，而PDF library能夠作編輯，註釋，處理，閱讀和渲染。

Android PDF Library 和 Android PDF SDK 有什麼區別？

Android PDF Library和Android PDF SDK 之間的區別很小，他們在Android 平臺上提供了幾乎相同的PDF功能。

Part 02: Top 5 Android PDF Library/SDK  

01 PDFTron Mobile PDF SDK

• 安卓平臺上出色的渲染功能：渲染PDF準確，優化，可信，品質高，速度快。 這些優勢都來自於著名的先進pdf引擎:PDFNet PDF 庫。

• Java 綁定：徹底的java綁定，能夠完美集成於安卓應用。是用戶友好型java接口。

• 出色的性能：Android PDF library提供了高至500倍的縮放比例，在連續模式下都能很好的閱讀複雜的PDF文檔。

• 豐富健壯的圖形支持：支持各類形式的PDF文檔。

• 爲創新和開發提供方便即用的工具：Android PDF 庫還提供對高級功能的支持，好比：全文本搜索，連接，文字選中，修改，書籤導航，交互表單，註釋，還有一些PDF標記，像下劃線，刪除線，矩形，直線，箭頭，手型工具，切割和便籤。

• 自定義安卓控件：PDF控件源碼也是開放的

• 徹底遵循質量標準：支持各類版本的pdf格式，包括IOS32000.

• 支持低至Android 2.2的各版本。
  

（翻譯好累，後面直接貼了）

02 qPDF Toolkit- PDF SDK for Android

PDF SDK for Android adds viewer and reader support to any of your Android applications. You are able to create an application by an integrated PDF reader. For now, PDF SDK is under very active development and is in beta form. The developers are currently focusing on implementing rendering and parsing components that are missing currently on the Android PDF SDK. They are also working on the reader UX and UI. On a good note, developers of Android PDF SDK want to incorporate features that users have requested for.

Android PDF SDK has managed to implement the following features;

• Browsing PDF pages

• Zooming in and out

• Very high optimized rendering and parsing performance

• Very highly optimized memory management.

Challenges of Android PDF SDK

• Not all shader types can be used at the moment.

• Files with a password cannot be used on the Android PDF SDK.

• Android PDF SDK does not render filing and gradient painting.

• With the exception of Grayscale, RGB, CMYK, ICC color spaces are not yet implemented.

• The JPEG 2000 image decoder is not also implemented.

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03 PDF JET

PDF JET is an extremely powerful tool that provides for complete PDF generation library for any of your needs and allows for creation of very complex PDF documents by the advanced features of drawing and text classes. This is much more intuitive than other product. It is dynamic and very flexible in handling very simple reports to such highly complex work like dynamic brochures with lots of graphics. The customer care of PDF Jet is on point. You could have features that you need incorporated just overnight. The other advantage of PDF Jet is that it allows for writing PDF to a stream. It has very, simple, logical, clean and easy PDFjet source Code. It also has a liberal open source license with no royalties.

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04 FOXIT Embedded PDF SDK for Android

FOXIT Embedded PDF SKD is a fast, secure and affordable PDF solution. With this toolkit, PDF Android platform developers will be able to create PDF apps for uses to view, annotation and search of documents and filling in of PDF forms. With a modular package, users will be able to get all advanced PDF features. FOXIT has a cross platform library through which you can easily extend support to other platforms like iOS. This FOXIT PDF SDK is mainly used for Android. Users can also get an account to learn all the features easily. Sample codes enable developers to see how to setup FOXIT Embedded PDF SDK for Android. Its Java user interface as well as the user-friendly utility make it easy to use.

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05 Apache PDFBox

Apache PDFBox is an open source Android PDF library tool that enables users to create new documents, manipulate PDF documents and also allows for extraction content from PDF documents.

Some of the highlight features for Apache PDFBox include;

• Apache PDFBox allows for developers to extract text from all PDF files.

• With PDFBox, a developer is able to either split existing single PDF document into two or multiple documents or better still merge the existing PDF documents into one document.

• It allows conversion of PDFs form images

• With a PDFBox, a developer can insert Java printing API to enable users finally print from Android phones.

• The forms filling feature allows users to either extract data from forms or prefill a PDF form.

• It has solid validation against the ISO PDF/A standard.

• After developed with this SDK, end users will be able to sign on PDF.

貌似VuDroid是比較現成的.