Optical character recognition (OCR) is the process of converting images of text to text that can be manipulated by word processors etc.

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25
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8answers
34k views

How to extract text with OCR from a PDF on Linux?

How do I extract text from a PDF that wasn't built with an index? It's all text, but I can't search or select anything. I'm running Kubuntu, and Okular doesn't have this feature.
14
votes
8answers
22k views

How can I convert scanned images as PDF to a searchable PDF file?

I have a PDF of a scanned book. I'm looking for a free software that will perform OCR and then provide an option to save it as a PDF or document again. Is there one?
13
votes
4answers
6k views

Batch-OCR many PDFs

This has been discussed a year ago here: Batch OCR for many PDF files (not already OCRed)? Is there any way to batch OCR PDFs that haven't been already OCRed? This is, I think, the current state of ...
12
votes
5answers
13k views

Extract OCR text from Evernote

Evernote does OCR on the images you save to it. Is there a way to get the full text equivalent for an image in Evernote, or is the OCR only for searching?
8
votes
3answers
17k views

How can I identify fonts from an image?

Many times I come across bitmaps with nothing but text paragraphs, so I was looking for a way to identify the font used, the paragraph alignment, line spacing and color, bold, italics. Would an OCR ...
8
votes
8answers
4k views

Practical OCR solution for converting a large book to a digital format?

I was over by my grandparent's place this past weekend. My grandmother pulled out this giant (~1400 page) book of her family history going back to 1630 or so. Giant nerd that I am, I thought it would ...
6
votes
3answers
125k views

How do I Initiate an OCR scan in Microsoft Office Word 2010?

How do you kick off a scan and character recognition using Microsoft Office Word 2010 (Beta)? I can't seem to find an option to scan the document in my scanner directly into a 2010 Word document. I ...
6
votes
5answers
2k views

PDF has an extra blank in all words after running through Ghostscript

This PDF was produced by Abbyy Finereader 10: http://ebooks.zeitr.org/from_abbyy.pdf You can copy & paste the first sentence and get this (very good) text result: Der ┬╗Bund Deutscher ...
6
votes
7answers
3k views

Extracting text from a .PDF scanned book [closed]

I have a scanned a book in PDF format, but the quality is rather poor: (The language is Romanian and it's a medical physiology book, in case you were wondering) I want to extract text from the ...
6
votes
2answers
546 views

OCR for numbers with gray noisy background

I tried to run OCR on multiple scanned sheets with numbers like this image (All with same background, digits only): But all trials failed! I tried offline OCRs: gocr, tesseract and couple of online ...
6
votes
1answer
190 views

Can a OCR confuse letter case?

Can a OCR sometimes confuse between letter case? For example 't' interpreted as 'T' or 'r' as 'R' at some point?
6
votes
2answers
2k views

Can Acrobat 11 be made to do OCR using multiple CPU cores?

OCR processing takes time. Using multiple CPU cores would speed up processing. Acrobat 10 was not a multithreaded application. How about Acrobat 11? Does 11 by default do OCR using multiple CPU cores ...
6
votes
3answers
16k views

Batch OCR for many PDF files (not already OCRed)?

I use Google Desktop Search (I am on Vista) and not all my PDF files are recognized in my archive folder. It is normal as "PDF files that contain scanned images" are not indexed ( ...
6
votes
1answer
666 views

Is there free OCR software that works well for source code?

I am trying to convert the screenshot given in this Stack Overflow question to a textual representation. I already did it by hand, but I'd like not to have to do that sort of thing again in the ...
6
votes
3answers
2k views

Good free OCR with GUI for correcting mistakes? (for Windows)

I've used SimpleOCR, which has a nice GUI for correcting mistakes. Unfortunately it makes a lot of mistakes! (and suffers other bugs and limitations) On the other hand Tesseract is more accurate but ...
5
votes
4answers
554 views

Is there Any OCR program that can handle non-Latin characters?

I'm looking for an OCR program that can work with hebrew characters. I'm open to using something on Mac or PC, but it needs to be a reliable program. What are my options?
5
votes
3answers
3k views

How to do OCR on a PDF document? [duplicate]

Possible Duplicate: How to extract text with OCR from a PDF on Linux? I have a few documents in English and Hebrew that I scanned in and converted to PDF format. Is there some free or ...
5
votes
1answer
950 views

Is there a better way to correct errors in Adobe Acrobat's OCR results?

I'm using OCR Text Recognition integrated into Adobe Acrobat Pro 8 to produce an (invisible) searchable text overlay for text pages I have scanned. This is very neat for copying some phrases to the ...
5
votes
1answer
2k views

OCR Image recognition plugin for firefox and chrome? [closed]

Sometimes i need to OCR images that I stumble upon on some webpages. I would like to know if there are any plugins for Firefox and Chrome that would allow me to upload desired image for processing on ...
4
votes
2answers
645 views

Image to Text converter [closed]

I need a software which can convert scanned text to editable text. I will prefer freeware?
4
votes
1answer
493 views

How to create documents from scanned images

I have a large number of Micorsoft Word documents to create, after a disk crash and patchy backups, destroyed the originals. We have a fair amount of the originals left, and instead of manually ...
3
votes
2answers
236 views

Optimal lossy compression of images

I have a lot of images/documents, where I want quite a low filesize, without throwing away to much information, or cause generation loss with future compression. A) Documents, business cards etc ...
3
votes
3answers
26k views

What software can convert handwriting to text?

I took a look at MyScript, but the program does not accept PDF format. I have a few documents (PDF) that are scans of hand writing. I need a program that can take the PDF scan it, use OCR and ...
3
votes
3answers
12k views

Command-line OCR in Windows 7

What are some command-line OCR utilities that will work in Windows 7 64-bit?
3
votes
5answers
14k views

Babylon can't recognize text on Firefox 4 ~ 8 & IE 9

Before I upgraded to Firefox 4 & IE 9, Babylon was succesfully recognizing text on those browsers. After the upgrade, it cannot recognize text anymore. I've played with the OCR Optimization in the ...
3
votes
2answers
1k views

How to replaces images of text in PDFs with formatted text using OCR

I get a lot of PDFs from other people consisting of scanned old documents. Unfortunately, sometimes the text on the scans, though legible, looks grainy and is hard to read. What I've been able to do ...
3
votes
1answer
468 views

How can I make OCR recognize my documents' text better?

I can't get some of my docs with images to be recognized by OCR. They're not especially low-resolution — though some are distorted — but I can't get them through OCR even with Omnipage. I ...
3
votes
1answer
468 views

How to add OCRed text to original pdf in gscan2pdf?

I am new to gscan2pdf 0.9.31, and just used it to OCR a scanned pdf. After saving the pdf, the OCRed text is stored on the top left corner. However I wish each OCRed character to be added to ...
3
votes
1answer
2k views

Training Tesseract-OCR for english language fonts

I have about 3000 small images of single words that I am trying to convert to text. I have installed tesseract on my windows 7 machine using the installer and successfully managed to OCR images ...
2
votes
3answers
3k views

scan A4 doc > pdf > ocr > translate to english?

I've tried using a combination of my home scanner to create a '300 dpi', 'document', 'pdf' (options on Canon all-in-one) ZoHoViewer to create either an RTF or TXT file google docs to translate I'm ...
2
votes
5answers
1k views

How do I get the best quality screenshot for OCR (Optical Character Recognition) and what tool would be the best for screenshots?

I'm trying to get some data into a text file from screenshots. Apparently screenshots don't work very well with OCR because they are 75dpi and the minimum for good quality OCR is 150dpi. Does anyone ...
2
votes
2answers
851 views

Scanning Hebrew text

What OCR programs and resources are available to scan Hebrew/Yiddish text? One program per answer please, and please include the following: Price Link to download or purchase site Does it work with ...
2
votes
2answers
828 views

OCR that adds generated text to the original pdf and djvu files?

My OS is Ubuntu. I found there are some applications can OCR a pdf or djvu file, generating another text file. But I was wondering how to add the OCRed text onto the original pdf or djvu files, to ...
2
votes
1answer
1k views

Can I force Acrobat Professional to replace the OCR-ed selectable image with text?

I have a book I want to read onscreen. It is scanned at 200 dpi monochrome (I still don't know what went wrong in the scanner driver, I remember setting it to grayscale, but cannot afford the time to ...
2
votes
1answer
121 views

How to analyze the space usage within pdf document?

I have this 7mb pdf that I made from 65 scanned B/W images. After OCR, the document becomes 32mb. I have never seen text taking up so much space. (in theory 25mb should give me 25 million letters ...
2
votes
1answer
394 views

How to automatically find non-searchable PDFs

Suppose I have a directory full of many PDFs. In most of them, the text is completely search-able, which is the way I need them to be. But a few of them are just image scans, and they need to be ...
2
votes
1answer
76 views

Edit text in image

I have a JPG image with some text in it. I would like to edit this text. I am currently using Adobe Acrobat for this purpose, however I found that the Text Recognition Tool will not recognize all ...
2
votes
1answer
106 views

Form recognition using OCR and return image of the value

I'm on a project that processes hundreds of forms. The forms have consistent formats but are filled out by hand by different people. I need a way to quickly process all of this data into electronic ...
2
votes
4answers
2k views

How can I search multiple PDF files that have OCR?

I have thousands upon thousands of PDF files that have OCR. It's great when you have one open but I want to be able to find PDF files in a folder that contain X. Adobe seems to have something build in ...
2
votes
2answers
16k views

OCR in Word 2013

Word 2013 can naively open and edit PDF documents (big plus in my opinion). Is there a way to get it do some OCR as well? On a PDF that that had mostly pictures, even the parts that were pure text ...
2
votes
1answer
524 views

OCR Image based PDF [duplicate]

Possible Duplicate: Extracting text from a .PDF scanned book How to do OCR on a PDF document? I've got a >200 page pdf manual that was produced by scanning hard copy. I'd like to convert ...
2
votes
1answer
492 views

OCR of engineering drawings?

What's the best solution for OCR analysis of handwritten text strings that appear on a map? More in-depth explanation of what I'm looking for: I'm working on a large data processing effort involving ...
2
votes
1answer
527 views

Software to read characters from picture [duplicate]

Possible Duplicate: Image to Text converter Here's why I need this software: I have a lot of screenshots taken of my tool; I need to read the user names and passwords from those ...
2
votes
1answer
269 views

Windows Search OCR plugin/extension

Is there any plugin or solution available to let Windows Search index text in graphic pages embedded into pdf files. Something like the amazing Omnipage OCR plugin which was available for Google ...
2
votes
2answers
463 views

Looking for software to rename file name of jpeg scan image of doc to text in the image [closed]

I'm scanning in many A4 paper documents to JPEG using a automated document feeder scanner. The results are FILE0001.JPG FILE0002.JPG etc. I would like a program to rename the file name title to text ...
2
votes
1answer
567 views

Batch convert pdf's t searchable pdf's

I'm looking for a way to convert thousands of pdf's to searchable pdf's. I've used a program called "PDF Create Assistant" that came with Nuance's ecopy software. However, you can't select a folder, ...
2
votes
1answer
201 views

Software for “OCR”'ing exact pixels from a photo of a videogame/pixel-art?

I am searching for software that can reconstruct the exact pixels from a photo of an old videogame or a piece pixel-art. The goal would be the re-digitalization of digital images that only survived in ...
2
votes
1answer
437 views

Looking for recommendations on OCR problem - tabular numeric data

I have 20 pages of experiment measurement data which I need to digitalize. The results are in tabular form, scanned in 600 dpi resolution, and as far as scans go, they came up pretty clean and ...
2
votes
1answer
121 views

How to remove OCR from a PDF?

I have been searching Google for some time but cannot find an answer to my question. I have unwanted layers of OCR in a document that I recently scanned with Adobe Acrobat. It has not been OCRed ...
2
votes
0answers
128 views

Tesseract can't scan `Error:Only 1,2,4,5,6,8 bpp are supported:32`

Even though I did convert canvas.png -depth 8 canvas.tif I am still seeing this error message: Tesseract Open Source OCR Engine check_legal_image_size:Error:Only 1,2,4,5,6,8 bpp are supported:32 ...