施乐(Xerox)机器的第一个商业型号几乎有两台洗衣机那么大，重约 650 磅，而且容易过热。
尽管如此，这对秘书来说是天赐之物，因为他们不再需要使用糟糕的复写纸或访问第三方外部打印店来制作高质量的副本。它的核心技术后来转移到打印机和扫描仪上，并且自 1930 年代以来一直如此。
智能手机简化了这些曾经繁琐的工作任务，并已成为生产力机器，可提供快速简单的移动扫描仪来管理您的纸质文件。曾经昂贵的精英工具现在通过移动扫描仪应用程序成为主流。
您的 iOS 设备有许多扫描仪应用(scanner apps)可供选择，但我们通过隔离我们认为最有用的特征来缩小范围。其中包括光学字符识别(optical character recognition)( OCR )、图像质量、易用性、多种格式和共享选项、安全性、编辑和注释功能以及合理的价格。
快速扫描(Swiftscan)
Swiftscan 结合了易于使用的布局、出色的图像质量、可靠的OCR结果和共享选项。它也是处理PDF(PDFs)的绝佳工具，无论您是想签名、添加注释还是突出显示一些重要部分。您甚至可以重新排列、删除或添加更多页面，准确裁剪扫描，并纠正几何失真。
它不会在云中执行OCR或将您的数据发送到其服务器，因此您的私人信息不会受到窥探当局和黑客的侵害。它还提供PDF加密，因此您可以使用密码保护(password-protect)您的文件。
您可以调整自动裁剪、旋转、应用过滤器并为扫描的文件命名，但是一旦保存扫描，您将无法返回并更改过滤器；你必须重新扫描。然后，您可以通过电子邮件或TXT文件共享它，并将所有扫描自动上传到云服务，包括Dropbox或Google Drive以及(Google Drive)Evernote等笔记应用程序。
其他简洁的可用性功能包括专用的多页扫描模式、密码和Touch ID应用程序锁、Wunderlist集成以及 60 种语言的自动文本识别。
不过， Scanbot(Scanbot)没有针对不同内容类型的预设。例如，如果您扫描名片，它不会自动将该人添加到您的联系人中。它也不能可靠地识别手写文本。相反，它使用操作(Actions)功能来分析OCR结果，并提取电子邮件地址、URL(URLs)和其他可操作元素。
微软办公镜头(Microsoft Office Lens)
这款免费的扫描仪应用程序旨在拍摄以Word、PDF或PowerPoint文件格式保存的笔记、文档和白板的图像。Office Lens没有广告，可让您通过OneDrive或OneNote将扫描结果保存到云端。
它的用户界面简单易用，但您必须在 iOS 设备上安装Word才能访问扫描结果，并且您只能在Microsoft Office系列应用程序和服务中共享文件。
除了通常的图像过滤器外，Office Lens还具有用于扫描名片和白板的独立模式，具有独特且有用的结果。但是，它在手动调整裁剪时不会放大角落，因此更难获得精确的结果。
扫描仪(CamScanner)
这款商业级扫描仪应用程序可以扫描各种文档，从收据到发票、合同等。它将扫描的文件转换为PDF(PDFs)，然后自动上传到云存储服务，如Dropbox、Google Drive、Evernote、OneDrive和Box。您还可以邀请团队成员查看和评论扫描，但他们必须拥有用户帐户。
其高级编辑功能可让您为文档添加水印和注释以获得更专业的外观，并且您可以为文档添加密码以提高安全性。
您可以免费下载它，或升级到其负担得起的高级计划之一，该计划带有 10GB 存储空间和其他漂亮功能，如批量文档下载，以及发送带有密码保护的文档链接。
印象笔记可扫描(Evernote Scannable)
这个功能强大的小型扫描仪应用程序将扫描您放在它前面的任何东西，并将其发送到您首选的存储或Evernote帐户。
它还可以让您与其他人共享扫描结果，但它是智能的。例如，如果您正在参加商务会议并且授予Scannable访问您的日历的权限，您可以扫描会议纪要，Scannable会询问您是否愿意与与会者共享图像，只要他们被列出在会议邀请中。
您可以扫描收据、名片、草图、纸质文档或多页文档，Scannable将自动归档和组织扫描结果，自动裁剪它们以去除背景并增强它们以使文本可读。
它还会自动将扫描的名片中的联系人添加到您设备上的联系人卡片中，您可以给该人打电话或发送电子邮件，或者一键访问他们的网站。
精细扫描仪(FineScanner)
这是一个仅适用于 iOS 的扫描仪应用程序，它使用OCR扫描 193 种语言的文本。它可以扫描打印和手写的文本，并且可以处理包括PDF、DOCX和TXT在内的 12 种文件格式，同时保留原始文档格式。
其易于使用的注释工具可让您在文本和签名中添加注释，并且借助BookScan功能，您可以轻松地将书籍数字化。FineScanner还可以自动去除背景并增强最终图像以突出图形或突出文本。
您的扫描结果可以通过电子邮件共享，或者您可以将它们保存到云存储服务，如Dropbox、Google Drive、iCloud Drive和Evernote。该应用程序是免费的，但如果您想要更多功能或额外存储空间，它会提供应用程序内购买。
移动(Mobile)扫描应用程序可以用于您的物理扫描仪无法像商务午餐或学校图书馆那样的地方。另外，如果您只需要不时扫描几个文档并轻松共享它们而无需重型机械，那么它们是一个很好的权宜之计。
The Best iOS Scanner Apps To Scan Documents & Images
The first commercial mоdel of the Xerox machine was almost the size of two washing machines, weighing about 650 pounds, and prone to overheating.
Nonetheless, it was a godsend for secretaries as they no longer needed to use lousy carbon paper or visit third-party external print shops to produce quality copies. Its core technology later moved to printers and scanners and has remained so since the 1930s.
Smartphones have simplified these once-cumbersome workplace tasks, and have become productivity machines that provide a quick and simple on-the-go scanner to manage your physical papers. What was once expensive, elite tools have now emerged into the mainstream through mobile scanner apps.
There are many scanner apps to choose from for your iOS device, but we narrowed the field by isolating the traits we think are most useful. These include optical character recognition (OCR), image quality, ease of use, diverse format and sharing options, security, editing and annotation features, and reasonable price.
Swiftscan combines an easy-to-use layout, excellent image quality with solid OCR results, and sharing options. It’s also a great tool to work with PDFs, whether you want to sign it, add notes or highlight some important parts. You can even rearrange, remove or add more pages, crop scans accurately, and correct them for geometric distortion.
It doesn’t perform OCR in the cloud or send your data to its servers, so your private information is safe from prying authorities and hackers. It also provides PDF encryption so you can password-protect your files.
You can adjust automatic crop, rotate, apply filters and name your scanned file, but once you save your scans, you can’t go back and change the filter; you have to scan afresh. You can then share it via email or as a TXT file, and upload all scans automatically to cloud services including Dropbox or Google Drive, and note-taking apps like Evernote.
Other neat usability features include a dedicated multi-page scanning mode, passcode and Touch ID app locks, Wunderlist integration, and automatic text recognition in 60 languages.
Scanbot doesn’t have presets for different content types, though. For example, if you scan a business card, it doesn’t automatically add the person to your contacts. It also can’t reliably recognize handwritten text. Instead, it uses the Actions feature to analyze OCR results, and extract email addresses, URLs, and other actionable elements.
This free scanner app is designed to take images of notes, documents, and whiteboards that are saved in Word, PDF, or PowerPoint file formats. Office Lens is ad-free and lets you save your scans to the cloud via OneDrive or OneNote.
Its user interface is simple and easy to use, though you have to install Word on your iOS device to access the scan results, and you can only share files within the Microsoft Office family of apps and services.
Besides the usual image filters, Office Lens has discrete modes for scanning business cards and whiteboards with distinct and useful results. However, it doesn’t magnify corners while adjusting a crop manually, so it’s harder to get precise results.
This business-grade scanner app can scan various documents from receipts to invoices, contracts, and more. It converts scanned files to PDFs, which are uploaded automatically to cloud storage services like Dropbox, Google Drive, Evernote, OneDrive, and Box. You can also invite team members to view and comment on the scans, but they must have user accounts.
Its advanced editing feature lets you add watermarks and annotations to documents for a more professional look, and you can add passcodes to documents for improved security.
You can download it for free, or upgrade to one of its affordable premium plans that come with 10GB storage and other nifty features like batch document downloads, and sending document links with password protection.
This powerful little scanner app will scan anything you place before it, and send it to your preferred storage or Evernote account.
It also lets you share the scans with other people, but it does it intelligently. For instance, if you’re in a business meeting and you granted Scannable access to your calendar, you can scan the meeting minutes and Scannable will ask if you’d like to share the images with the attendees, as long as they’re listed in the meeting invite.
You can scan receipts, business cards, sketches, paper documents, or multipage documents, and Scannable will automatically file and organize the scan results, crop them automatically to remove backgrounds and enhance them so the text is readable.
It also adds contacts automatically from scanned business cards to a contact card on your device, and you can call or email the person, or visit their website in one tap.
This is an iOS-only scanner app that scans text in 193 languages using OCR. It can scan printed and handwritten text, and works with 12 file formats including PDF, DOCX, and TXT while preserving the original document formatting.
Its easy-to-use annotation tools let you add notes to text and signatures, and with the BookScan feature, you can easily digitize books. FineScanner can also remove backgrounds and enhance the final image automatically to highlight graphics or bring out the text.
Your scan results can be shared via email or you can save them to cloud storage services like Dropbox, Google Drive, iCloud Drive, and Evernote. The app is free but offers in-app purchases if you want more capabilities or extra storage.
Mobile scanning apps can go where your physical scanner can’t like a business lunch or your school library. Plus, they’re a great stopgap if you only have a couple of documents to scan every now and then and share them effortlessly without the need for heavy machinery.
