Questions tagged [ocr]

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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Photo OCR to file name

I have a large amount of image files with text in them, I would like to know if there is a way to run an OCR scan and mass change the file names based on the OCR scan details. Windows 10 Thank you for ...
0 votes
1 answer
39 views

tesseract ocr: why a png image containing computer digits returns me garbage when I ocr it to a text file?

I've installed tesseract ocr 5.3.0 (on Debian 12) I want to scan and ocr this png file: When I execute a: tesseract cp1.png cp1 the output cp1.txt contains unexpected garbage: y ...
1 vote
2 answers
6k views

Pattern matching in bash to use in case-statements (instead of regex)

I have coded one of my first bash scripts. My goal is to make my office "paper-free". I have a lot of scanned documents, that I want to save with the date (usually found at the top of each document) ...
2 votes
1 answer
9k views

How do I train Tesseract for a new ttf font?

I am trying to train Tesseract for some funny looking fonts, like Palace for example. I have tried a simple way - produced traindata with http://trainyourtesseract.com/ (via Wayback Machine) and ...
0 votes
0 answers
32 views

OC document with mixed mathematics and text

I have a document containing math-equations that I want to translate to another language using google translate. What I would have done if it was a text-document with images, is to use any ocr-...
0 votes
1 answer
2k views

How to make pdf and content searchable again in Onenote

A year ago, I could use the search option in every OneNote documents very efficiently (to be more precise I'm using "OneNote for Windows 10" (software version)), it would find words in pdf's ...
5 votes
5 answers
20k views

What is this symbol `¬` and how to remove it from an MS Word 2013 file?

I used a OCR program to convert some scanned pages to an ms word file. After the conversion is possible to found the symbol ¬ in the middle of many words. I tried to search and replace it but word is ...
0 votes
1 answer
110 views

NAPS2 Auto detect image when scanning

Is there any way to detect image. I have HP LaserJet Pro MFP M28 printer/scanner and I have some pictures with different sizes to scan. Can I set up NAPS2 to automatically detect image from whole ...
13 votes
8 answers
20k views

Enable OCR in Greenshot

I run Windows 10 with Microsoft Office professional Plus 2016 on my computer. Looks like MS OCR functionality is enabled in my system since OneNote is able to copy text from image. But how to enable ...
3 votes
1 answer
3k 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 ...
49 votes
11 answers
69k 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.
1 vote
0 answers
83 views

How to mark paper documents before scanning to simplify OCR sorting?

My business generates a lot of handwritten notes that get scanned and sorted into clients' files. Each file has a unique 5-digit numeric code, which is handwritten on the page before scanning. Our ...
1 vote
0 answers
81 views

Digit recognition with ocrmypdf

I would like to get a "5" out of this image using ocrmypdf: I tried: ocrmypdf digit.png --output-type none --image-dpi 300 --sidecar side.txt - > /dev/null But nothing, the sidecar is ...
0 votes
1 answer
66 views

How to OCR high number of images using azure vision without programming?

I have about 500 number of images that I definitely want to OCR these images with Microsoft azure vision. For some reason, I don't have any access to azure account at the moment. Can I OCR my images ...
1 vote
2 answers
4k views

How can I improve the quality of pixelated text in scanned PDF images and convert it into non-pixelated, high-quality digital text?

I have a scanned PDF document containing images with pixelated text. The OCR process has extracted the text, but it appears low quality and pixelated. I want to convert this pixelated text into a high-...
24 votes
6 answers
22k 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 ...
0 votes
1 answer
249 views

Searching for text in DJVU files through the Windows search panel

I have many DJVU files with OCR in one folder. What should be done or how can I search for words in these files through the search field in the folder (top left)? There is a reference to the DjVuOCR ...
0 votes
0 answers
91 views

Can I annotate a PDF with gImageReader to make it searchable?

I am using the latest version of gImageMaker (3-2023, Windows 10). OCR works fine. I use a PDF as source, which is not searchable and just want to add the OCR text to the PDF so it becomes searchable. ...
9 votes
3 answers
5k 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 (...
1 vote
0 answers
1k views

Fix blurry text in a PDF

I have a PDF containing both text and images. Images are ok, but the text is blurry, with a "pixelated" pattern, very difficult to read. If I copy-paste the text from Adobe Acrobat to ...
0 votes
0 answers
331 views

How can I undo OCR in Foxit?

Optical character recognition (OCR) in Foxit sometimes mess up the font. E.g., before OCR: After OCR: How can I undo OCR in Foxit? Ctrl+Z doesn't undo OCR. I use Foxit 11.2 on Windows 10. I made ...
2 votes
2 answers
183 views

OCRmyPDF cannot convert pages with watermarks

I have some scanned magazines with a pink watermark on some of the pages. I need to ocr them and OCRmyPDF seems to be the right tool for the job. Except that it cannot convert text on top of the ...
2 votes
2 answers
7k views

How can I convert PDF bank statements to a Excel or CSV file?

I am just doing my UK tax return (Yes I have left it until the last minute). My bank (Nationwide) will only let me download the last 15 months of transactions as a CSV file, but will let me download ...
0 votes
0 answers
410 views

Change Trade Manager software language

I have installed Alibaba Trade Manager software. Unfortunately it in Chinese language. How to make its interface English? This is its settings window:
1 vote
1 answer
167 views

convert hand-filled checkbox form to excel

I got a hand-filled check box form: Imagine that there are Xs on each row to represent the selected answer by pen marks. I look for some kind of software that will convert the scanned forms into ...
2 votes
2 answers
2k views

ffprobe OCR of a subtitle stream

I have some video files containing HDMV PGS subtitles, and I need to convert them to subrip (or other text subtitles). I know that I can ffmpeg demux the video file to extract .sup and on the fly ...
21 votes
11 answers
51k 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 ...
0 votes
1 answer
651 views

Getting output only from 1st page TIFF to hocr extract

[Sample Image] I seek your guidance in the code given below. Iam running this code to extract text from multipage TIFF to hocr format. Iam getting an output from the 1st page of TIFF but rest of the ...
0 votes
1 answer
398 views

Is there a convenient solution to go from PDF to excel?

I receive these god awful invoices in the form of faxes. We are in the process of implementing EDI however this is how it has to be done for the next few months. The employee i have entering the data ...
0 votes
1 answer
877 views

Print a PDF to a new PDF from Acrobat preserving the ocr text

I would like to print a protected PDF file in another PDF file using Acrobat, so that I can also consult it in the future, and I would like to keep the text searchable: is there a way to do this with ...
16 votes
3 answers
47k views

How can I identify fonts from an image? [closed]

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 ...
1 vote
1 answer
708 views

Apache Tika: Where to place tika.xml to disable OCR

I am running Apache Tika to extract text from a bunch of MS Office documents. My command looks like this: java -jar "c:\path\to\tika-app-2.0.0.jar" -t ... (I am running this command on Win10 ...
4 votes
4 answers
6k views

Copy pdf text layer to another pdf

Suppose you've got 2 "scanned" pdf files. Large, but without text layer. Smaller (with lower quality images), but with correct text layer. Both files contain equal images, different only by their ...
0 votes
1 answer
118 views

Add an OCR layer over MS Word images (extracted from PDF)

I'm working on a PDF (that i created with LaTeX) and I need to convert in into a MS Word document, but keeping the *exactly* original typesetting and design. Since all the converters from PDF to Word ...
1 vote
1 answer
1k views

Mapping data from OCR'd Document to Form Fields

Is there any way to automatically take the data from a particular place in a document and have it insert into a particular field in a form? All of the documents follow one of two standard formats: ...
0 votes
0 answers
205 views

delete image layer in pdf and work on text layers only

I have a searchable pdf document. I would like to delete the image layer to work on the text layer only. How can I do it? Thanks in advance to those who will help me
36 votes
4 answers
17k views

How to create PDF with scanned pages but selectable text?

Today I recieved a PDF from our supplier and it contained several printed and scanned pages with signatures etc. I opened it in Acrobat Reader DC. But to my surprise the text from the evidently ...
0 votes
0 answers
566 views

How to OCR this subtitle?

Is there any Linux OCR tool that can extract this subtitle without having to train a LSTM? Language is Portuguese. Some image cropping and python coding is acceptable... I could not find a Tesseract ...
0 votes
0 answers
45 views

How to pre-process the background of this image in order to OCR the table properly?

I have to OCR the book of tables consisting of 500+ pages but the maker stamped every page. Can anybody help me on how should I process it in order to be able to recognize it let's say in FineReader? ...
23 votes
3 answers
18k views

Blurry text in PDF

I have a pdf that has blurry text. The text itself is readable but causes lots of strain. This is an example of the text. Is there a way to clear it up?
1 vote
0 answers
404 views

How to OCR the hardcoded Korean subtitles from a movie?

I got a Chinese movie called "Xin li zui (2017)" with Korean subtitles, burned into it. Or, 'hardcoded'. Now, with an French, Spanish or English subbed movie or just any movie which uses the ...
7 votes
2 answers
23k views

Understanding OCR options in Adobe Acrobat: "Searchable Image", "Searchable Image (Exact)", and "Editable Text and Images"

In Adobe Acrobat (I'm using Pro DC if that matters), there are three options for OCR: "Searchable Image". "Searchable Image (Exact)". "Editable Text and Images". What are the differences between ...
2 votes
1 answer
2k views

Would extracting hard-coded subtitles like this work?

I have an mp4 with hardcoded subtitles and I want to make an SRT file. I tried using the video OCR software AviSub. It got the timings right but the words itself were very innacurate, so I got an SRT ...
5 votes
2 answers
9k views

OCR with non-language text

I am interested in using OCR to recognize text from a document that doesn't contain words. Rather, it is a document with a long string of "random" printed characters. I have been trying to use ...
0 votes
1 answer
108 views

Copy text from scanned pdf

I have some scanned documents, which I want to copy the text from. Adobe Acrobat Pro recognizes the text, however it is placed in a bunch of bounding boxes, making it impossible (?) to just mark all ...
0 votes
3 answers
57 views

Capture text on page with background white from photography

I intend convert a photography, with txt on page with background white, to txt file. The purpose is capture all text on this images. I google and I founded the imagemagick and this tools: SCAN Image ...
-1 votes
1 answer
493 views

How can I OCR the text from specific regions of a screenshot, then output that to a usable format?

I'm trying to automate logging of uh, ranked games in Street Fighter of all things - Yes, nerdy, I know. I have a spreadsheet In that I manually put in the following for each ranked game: The ...
0 votes
0 answers
137 views

How can I scan and get a PDF file with selectable japanese text?

I have several magazines in japanese. I would like to carry them to read in an airplane but they are too heavy so ideally I am thinking of scanning the pages and carrying them as pdfs. But I like to ...
2 votes
2 answers
2k views

Adobe could not perform recognition: This page is larger than the maximum page size of 45 inches by 45 inches

I tried to run the text recognition tool in a PDF, and obtain the following error message: Adobe could not perform recognition (OCR) on this page because: This page is larger than the maximum page ...
6 votes
3 answers
100k views

How to recover pixelated text from JPEG image with Photoshop?

I've got a JPEG image with text on it (badly scanned document), which is hardly readable. I have already played around with the sharpen filters, contrast, levels and the color replacement tool, with ...