Scan Documents and save as PDF

Last Updated on 2021-02-06

scan documents to PDF

Scan to PDF: Scan Multiple Pages in a Batch and Save as PDF

As document scanning experts, we get these question a lot:

  • Is document scanning from within a browser possible? If so, how?
  • How do I save the scanned images as a multi-page PDF file?
  • How do I automatically separate different files in one batch?

We’ll try to answer these questions. Before we provide the solution, we recommend you first give this web demo a try.

Scan multi-pages to PDF Online Demo

The demo application enables users to scan documents from TWAIN scanners and MFPs (Multi-Function Printer). They can save them as PDF files, either one-page PDF or multi-page PDF. Also, it utilizes barcodes as batch separators. If there is a barcode detected on the page, a new file will be created with the barcode value being the filename.

How to Use this Demo

Upon your first visit, the page prompts a message asking you to download and install Dynamic Web TWAIN, which this application is built upon. Dynamic Web TWAIN is a browser-based document scanning and webcam capture SDK. After automated installation, everything should be quite straightforward.

Learn more about Dynamic Web TWAIN

How to Build a Scan to PDF Application

Learn about Scanner Protocols

As a developer, to interact with a scanner from software, you need to understand the scanner driver protocals. There are several protocols on the market: TWAIN, WIA, SANE, ISIS. TWAIN has the biggest market share. The majority of scanners on the market provide a TWAIN driver. For a more detailed comparison, check out the article TWAIN vs. WIA vs. SANE vs. ISIS.

Scan Documents to PDF in a Web Application

Scanners are peripherals devices so they cannot be accessed directly from a browser. You need a browser plugin/extension/windows service to access scanners in Chrome and Firefox, IE and Edge. There is immense complexity in browser compatibility with the TWAIN protocol. So, it’s near impossible to build a browser-based document scanning module from scratch within a reasonable time frame.

Fortunately, Dynamic Web TWAIN can relieve a developer from the trouble. Having evolved for 15 years, Dynamic Web TWAIN provides all the features you need including:

  • Customizable scan settings
  • Image capture from web cameras
  • Loading local image files, image editing
  • Saving scanned images to local drives or uploading them to a remote web server.

Furthermore, multiple imaging add-ons are available, including a barcode reader we used in the demo application. Learn more about web server and programming language support on Dynamic Web TWAIN overview

Try our Free Online Demo Start your Free 30-Day Trial

Scan Documents to PDF in a WinForms and WPF Application

It’s a bit easier to enable document scanning in a WinForms or WPF application. Dynamsoft provides a .NET component for this purpose: Dynamic .NET TWAIN. To some extent, Dynamic .NET TWAIN is the .NET version of Dynamic Web TWAIN.

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