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Many rich features can be supported by the .NET PDF API, such as security setting (including digital signature), PDF text/attachment/image extract, PDF merge/split, metadata update, section and paragraph optimizing, graph/image drawing and inserting, table creation and processing, and importing data etc. Besides, Spire.PDF for .NET can be applied to easily converting Text, Image and HTML to PDF with C#/VB.NET in high quality.

Commonly Used Features and Functionality

High Fidelity Pdf file Conversion

Spire.PDF for .NET supports converting HTML, RTF, XPS, Text and Image to PDF documents with efficient performance. Developers can transform PDF to XPS, EMF, JPG, PNG, BMP, TIFF, Text format. Furthermore, along with Spire.Doc for .NET and Spire.XLS for .NET, developers can convert Word (Doc/Docx), Excel (Xls/Xlsx) and XML to PDF.

Easily Manipulate document and Form fields

Spire.PDF for .NET offers the facility to merge/split PDF documents and overlay documents. That is to say, users can overlay pages from different PDF documents one over another. Meanwhile, Spire.PDF for .NET can provide import and stamp feature, booklet feature and form filling which can help users read value from form fields and populate a database.

Security features

Spire.PDF for .NET can protect PDF documents by setting passwords and digital signature. User password and owner password can determine the encrypted PDF documents readability, modifiability, printability and other selective restrictions. Meanwhile, digital signature, as a more effective method, can be applied to safeguard and authenticate PDF documents.

Extract data from Pdf documents

Spire.PDF for .NET can be used to extract images, text, pages and attachments from a PDF document with great speed and accuracy.

Document Settings features

Document information can be set with Spire.PDF for .NET including custom metadata, document properties, page orientation, and page size. Wherein, document properties consist of document restrictions (printing, document assembly, page extraction, comment etc. allowed or not) and document description about file title, author, subject, keywords and so on. By using Spire.PDF for.NET, viewer preferences can be set with position, title display, resize, page mode and print scaling etc.

More features

• Text formatting, multilingual support, text alignment etc.
• Pen and brush to draw shape elements, text, images into PDF documents.
• Layers, transparent graphics, color space and barcode creation can render to PDF documents.
• PDF/A-1b and PDF/x1a:2001 Compliance, both standards can be applied.
• Add scalar/vector images and mask and place them in designated location.
• Table and table style can be supported by Spire.PDF for .NET
• Insert interactive elements including Annotation, action, JavaScript, attachment, bookmark with specifying place and appearance.

Features

Support Environment

• Fully written in C# and also support VB.NET
• Applied on .NET Framework 2.0, 3.5, 3.5 Client Profile, 4.0 and 4.0 Client Profile
• Support Windows Forms and ASP.NET Applications
• Support 32-bit OS
• Support 64-bit OS
• Support PDF Version 1.2, 1.3, 1.4, 1.5, 1.6 and 1.7
• PDF API reference in HTML
• Be Independent and do not need Adobe Acrobat or other third party pdf libraries

Conversion

• Convert Webpage HTML, HTML ASPX to PDF
• Convert Image(Jpeg, Jpg, Png, Bmp, Tiff, Gif, EMF, Ico) to PDF
• Convert Text to PDF
• Convert RTF to PDF
• Convert XPS to PDF
• Convert PDF to XPS
• Convert PDF to Image

Security

• Encrypt PDF ( Owner Passwords and User Passwords)
• Decrypt PDF
• Create PDF Digital Signature
• Modify PDF Passwords(Owner Passwords and User Passwords)

Text

• Draw Text
• Set Text Format( font, size, color, layout, rotate, transform, alignment, transparency)
• Read/Extract Text( Whole Page, Certain Page, Particular Pages)

Fonts

• 14 Core Fonts
• Type 1 Fonts
• Type 3 Fonts
• True Type Fonts
• CJK Fonts
• Unicode Support(Part)

Images

• Draw Image
• Draw Special Shapes( lines, Rectangles, Circles, Arcs, Ellipses, Five-Pointed Star)
• Read/Extract Images (Jpeg, Jpg, Png, Bmp, Tiff, Gif, EMF, Ico)

Attachments

• Add Attachments
• Add Attachments with Attachments Annotations
• Remove Attachments
• Read/Extract Attachments
• Read/Extract Attachments with Attachments Annotations
• Get Attachments Properties

Tables

• Simple Table
• Image Table
• Nested Table
• Export Database Table and Pictures to PDF
• Set Table Layout

Bookmarks

• Add Bookmarks
• Add Child Bookmarks
• Get Bookmarks
• Get Child Bookmarks
• Clear Bookmarks
• Modify Bookmarks
• Modify Child Bookmarks

List

• Simple List
• Ordered List
• Multiple levels List

Header and Footer

• Add Text in Header
• Add Text in Footer
• Add Image in Header
• Add Image in Footer

Watermark

• Add Text Watermark
• Add Image Watermark
• Modify Text Watermark
• Modify Image Watermark

Links and Actions

• Add Hyperlinks( Plain Link and Anchor Link)
• Work with Action
• Work with Javascript Action
• Work with Action Chain
• Work with Action Annotation

FormField

• Add Fields(Text Box, Check Box, List box, Combo Box, Button, Radio Button)
• Remove Fields
• Edit Fields
• Fill Fields

Pages

• Add PDF Pages
• Add Empty Page in PDF
• Delete PDF Pages
• Read/Extract PDF Pages
• Set Page Number
• Get Page Count
• Paginate Pages
• Set Page Transition
• Set Page Label
• Set Page Orientation
• Set Page Transparency
• Set Page Overlay
• Create PDF Booklet
• Draw PDF Barcode

Document

• Set PDF Properties
• Set PDF View Preference
• Set PDF Template
• Merge PDF Files
• Split PDF File( by one page and any range of pages)

Feature Details