Convert image to text using free online OCR software转换图片文字使用免费的在线OCR软件

Posted on June 28, 2009 at 5:52 am张贴于2009年6月28日在上午05时52分

Have a PDF document or an image that you would like to convert to text?有一个PDF文件或图片，你想转换成文字？ Now will everything being digital, you might end up getting a document from someone that is in TIFF or PDF format, but that you would have preferred in Word or Text format so you can edit it.现在一切都被数字化，你可能最终得到的文件是有人在TIFF或PDF格式，但你更希望在Word或文本格式，因此您可以编辑它。

Of course, you could always purchase OCR software, but here at OTT, we always try to find ways to do everything for free!当然，你总是可以购买OCR软件，但在这里立位耐力试验，我们总是想方设法，尽一切免费！ That's where a free online OCR service comes in handy.这就是一个免费的在线服务来识别用场。

Free OCR免费的光学字符识别 is a nitfy little web service that everyone should bookmark because you never know when you'll need it.是一个nitfy小Web服务，每个人都应该书签，因为你永远不知道当你需要它。

Basically, you upload a PDF or image file (JPG, TIFF, BMP) from your computer and Free OCR will process the document/image within a few seconds and spit it back out in plain text format.基本上，您上载PDF或图片档案（ JPG格式，图像）由您的计算机，并免费将进程光学字符识别的文件/图像在几秒钟内吐出它在纯文本格式。

The max file size is currently 2 MB.最大文件大小是目前2手机。 You don't have to do any pre-processing to your images except for making sure it is not skewed right or left.您不必做任何预先处理到您的图像除了确保不偏向左边或右边。 If it is, go ahead and deskew it before uploading.如果是这样，先deskew它上传之前。

Also, if there is more than one column in your image, it will convert it all to one column.此外，如果有多于一个列在您的形象，将其转换为一列所有。 However, they are creating a layout engine that will recognize more complex documents in the future.然而，他们正在创造一个布局引擎，将认识到更复杂的文件，在将来。

The recommended DPI for the images is 150, but if you have a file that is a lower DPI, go ahead and try it anyway to see if it works.建议新闻部的图像是150 ，但如果你有一个文件，是一个较低的新闻部，继续进行并尝试反正，看它是否工作。

The only major limitation right now is that it can convert only the first page of a PDF document and that's it!唯一的主要限制现在的问题是，它只能转换的第一页的PDF格式文件，这是它！ So if you have more than one page, you'll only get the first page.所以，如果你有一个以上的网页，您只会得到的第一页。 In the future, you will be able to process up to 10 pages.今后，您将可处理多达10页。

The cool feature, though, is that it also support six languages including German, French, Italian, Dutch and Spanish.凉爽的功能，但是，它也支持六种语言，包括德语，法语，意大利语，荷兰语和西班牙语。

Overall, the OCR results were very good on cleanly printed PDF and image files.总体而言，光学字符识别结果是非常好的清洁印刷PDF和图像文件。 Obviously, if I tried a lower resolution scanned document, it didn't catch everything, but still the results were impressive for a free online service!显然，如果我试图较低的分辨率扫描的文档，但它并没有赶上一切，但结果仍然令人印象深刻的一个免费的在线服务！

Give it a shot and see how it works for you.给它一个开枪看看它是如何工作的你。 Overall, it's a really useful tool if you ever need a free online OCR service for something simple.总的来说，这是一个真正有用的工具，如果您需要一个免费的在线服务，识别简单。 Enjoy!享受！ {via （通过 gHacks gHacks } ）

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