docscan vs OCRmyPDF

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docscan		OCRmyPDF
	Project
1	Mentions	77
81	Stars	12,067
-	Growth	2.7%
0.0	Activity	9.5
over 1 year ago	Latest Commit	11 days ago
Python	Language	Python
MIT License	License	Mozilla Public License 2.0

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

docscan

Posts with mentions or reviews of docscan. We have used some of these posts to build our list of alternatives and similar projects.

REMBG - A tool to automatically remove background from images
1 project | /r/Python | 3 Jan 2021

https://github.com/danielgatis/facematch and https://github.com/danielgatis/docscan

OCRmyPDF

Posts with mentions or reviews of OCRmyPDF. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-03-14.

TextSnatcher: Copy text from images, for the Linux Desktop
7 projects | news.ycombinator.com | 14 Mar 2024

Try https://github.com/ocrmypdf/OCRmyPDF - it uses Tesseract behind the scenes and it absolutely brilliant.
FLaNK Stack Weekly 19 Feb 2024
50 projects | dev.to | 19 Feb 2024
Calibre – New in Calibre 7.0
11 projects | news.ycombinator.com | 18 Nov 2023

I recommend running any such PDFs through OCRmyPDF.
https://github.com/ocrmypdf/OCRmyPDF
A better document viewer
1 project | /r/linux4noobs | 13 Sep 2023

If by "like a photocopy" you mean the file contains images of text rather than text, the MacOS viewer presumably does OCR on the images. I don't know if there's a Linux document viewer with that capability built-in, but a quick search turned up the standalone tool OCRmyPDF.
Gibts ein (CLI) tool, das Kontrast und Helligkeit von gescannten Textdokumenten dynamisch anpasst?
3 projects | /r/de_EDV | 27 Jun 2023
OCR for a full pdf on Neoreader
1 project | /r/Onyx_Boox | 25 Jun 2023

For anyone interested I solved the problem by first ocr files through the free and open source software ocrmypdf avaible here
ELI5: why is PDF such a widespread text format, instead of a format that's actually easier to edit?
1 project | /r/explainlikeimfive | 3 Jun 2023

ocrmypdf is nice for stuff like that.
Donut: OCR-Free Document Understanding Transformer
4 projects | news.ycombinator.com | 29 May 2023
massive crop and OCR newspaper
3 projects | /r/macapps | 16 May 2023

Use imagemagick to convert them to PDF and ocrmypdf to straighten and OCR. See this explanation.
OCR pdf and just keep the OCR text
1 project | /r/AskTechnology | 6 May 2023

Fair enough, maybe this might work for you, it should seperate the text from image anyway and if you have Adobe acrobat it should be able delete the background too with the edit function. It may already be able to do that if you haven't tried it

What are some alternatives?

When comparing docscan and OCRmyPDF you can also consider the following projects:

albumentations - Fast image augmentation library and an easy-to-use wrapper around other libraries. Documentation: https://albumentations.ai/docs/ Paper about the library: https://www.mdpi.com/2078-2489/11/2/125

PaddleOCR - Awesome multilingual OCR toolkits based on PaddlePaddle (practical ultra lightweight OCR system, support 80+ languages recognition, provide data annotation and synthesis tools, support training and deployment among server, mobile, embedded and IoT devices)

OMRChecker - Evaluate OMR sheets fast and accurately using a scanner 🖨 or your phone 🤳.

pdfplumber - Plumb a PDF for detailed information about each char, rectangle, line, et cetera — and easily extract text and tables.

scikit-image - Image processing in Python

tesserocr - A Python wrapper for the tesseract-ocr API

pillow - Python Imaging Library (Fork)

Paperless-ng - A supercharged version of paperless: scan, index and archive all your physical documents

SimpleCV - The Open Source Framework for Machine Vision

invoice2data - Extract structured data from PDF invoices

pdfminer.six - Community maintained fork of pdfminer - we fathom PDF

EasyOCR - Ready-to-use OCR with 80+ supported languages and all popular writing scripts including Latin, Chinese, Arabic, Devanagari, Cyrillic and etc.