53
votes
Accepted
How to create PDF with scanned pages but selectable text?
This has (contrary to some other answers here) most probably nothing to do with Acrobat at all.
Most (all?!) professional document scanners and most semi-professional ones will automatically perform ...
- 4,482
35
votes
Accepted
Blurry text in PDF
This is a raster layer which, unfortunately, also contains text. Arguably the simplest way to fix such PDF would be to use ABBYY FineReader (commercial, works on Windows, Linux, mac OS). A PDF or ...
- 752
19
votes
Blurry text in PDF
The text has been rasterised - turned into 'dots'.
It should still be vector - using actual fonts which are drawn live to screen.
This could be because the document was scanned and is effectively just ...
- 43.1k
11
votes
How to remove OCR from a PDF?
In Acrobat Pro DC, the appropriate command is "Remove Hidden Information," which is available through both the "Protect" and "Redact" tools.
On running the command, it just searches out the hidden ...
- 211
11
votes
Enable OCR in Greenshot
For those of you who for some reason or another can't/won't install SharePoint Designer, I've found a nice alternative solution, using the FOSS Capture2Text.
The software comes with both a GUI and a ...
- 111
11
votes
How to create PDF with scanned pages but selectable text?
But how is this possible?
Basically, a program performs OCR on the input file and then it places an invisible layer of text over the picture. Alternatively, it might also place a visible layer of ...
8
votes
Blurry text in PDF
There's another possibility for the cause of the blurriness: A filter layer placed above the scanned raster layer.
I worked in a place some years ago that had document scanners in the network. You ...
- 181
7
votes
How to extract text with OCR from a PDF on Linux?
Best and easyest way out there is to use pypdfocr it doesn't change the pdf
pypdfocr your_document.pdf
At the end you will have another your_document_ocr.pdf the way you want it with searchable text....
- 2,806
7
votes
Understanding OCR options in Adobe Acrobat: "Searchable Image", "Searchable Image (Exact)", and "Editable Text and Images"
The Adobe Help article
Scan a paper document to PDF,
section Recognize Text - General Settings dialog box,
defines the scan modes as :
Searchable Image
Ensures that text is searchable and ...
- 431k
6
votes
Batch OCR for many PDF files (not already OCRed)?
tl;dr? Start with Nuance PowerPDF Advanced.
I evaluated OCR software in Dec 2014 in prep for a big project - OCR on millions of English-language pages done in batches. If you're willing to spend a ...
- 189
6
votes
Accepted
Enable OCR in Greenshot
Enable OCR in Greenshot
How can I use Greenshot for OCR?
For the Greenshot OCR (Optical Character Recognition) plug-in to work
we are depending on a component from Microsoft called MODI (Microsoft
...
6
votes
How to effectively scan 130,000 paper pages in 10 days
If you simply need facsimiles of these and do not care so much about perfect presentation, consider a camera attached to a vertical copy stand.
Guaranteed not to jam, easily adjusted for different ...
- 4,084
5
votes
Accepted
How to extract Unicode character from .png file?
Is there any option to extract Unicode script?
When I try it for Unicode like Hindi, Marathi, or Devanagari Script it produces the wrong output.
It appears that only Hindi is supported out of the ...
- 149k
5
votes
Enable OCR in Greenshot
You also need to install MODI (Microsoft Office Document Imaging)
Go on following page and execute method 2 (this worked for me)
https://support.microsoft.com/en-us/help/982760/install-modi-for-use-...
- 51
5
votes
How to effectively scan 130,000 paper pages in 10 days
I can't answer what scanner to get, I can however speak from experience as an ex-worker who prepared, scanned and archived documents of all shapes and sizes that paper is rarely fragile and any tears ...
5
votes
How to leave pdf image unchanged while adding OCR to a pdf with pdfsandwich?
I contacted Tobial Elze, the creator of pdfsandwich, with my question. Here is their response:
I'm fully aware of what you mean and I agree that this would be a
useful feature. It is currently ...
- 111
4
votes
Accepted
Copy pdf text layer to another pdf
Here's a simple shell script to do this on the command-line:
Save this as ~/pdf-merge-text.sh (and chmod +x it):
#!/usr/bin/env bash
set -eu
pdf_merge_text() {
local txtpdf; txtpdf="$1"...
- 23.4k
4
votes
Enable OCR in Greenshot
The new way is to just save an image with Greenshot, then copy and paste into OneNote, right click the image, Copy Text from Picture, then paste OCRed text.
http://answers.microsoft.com/en-us/...
4
votes
How to create PDF with scanned pages but selectable text?
This is possibly because of a Acrobat OCR feature:
Acrobat can recognize text in any PDF or image file in dozens of
languages. All you have to do is open the scanned document or image
that you'...
- 15.4k
4
votes
Accepted
ffprobe OCR of a subtitle stream
Image-based subtitles are a hybrid media type, they contain video data but are designated as subtitles. Almost all ffmpeg code expects actual stream data to be of the type they are indicated as. So, ...
- 33k
3
votes
Accepted
How to make OCR recognize this image
The images are too small for it to properly work. I took your images and simply scaled them up to a height of 50px (constant resolution) and ran
tesseract input output -psm 7
My output resulted in
...
- 20.8k
3
votes
How to remove OCR from a PDF?
In Acrobat Pro: use 'remove hidden information' (under 'protection'). Select all, execute, OCR is gone
- 31
3
votes
How to remove OCR from a PDF?
If, as you say, the documents are scanned and not printed to PDF from Word for example, you can easily remove with your Adobe:
Select Document, Examine Document and now you can remove the hidden text (...
- 31
3
votes
Adobe could not perform recognition: This page is larger than the maximum page size of 45 inches by 45 inches
An absolutely legitimate question.
The primary workaround is opening the scanned document in an image editor (Photoshop, theGIMP, etc.) and increase the resolution. This will NOT lead to a scaling, ...
- 1,564
3
votes
How to effectively scan 130,000 paper pages in 10 days
A few thoughts on removing staples
For standard document scanners you need to remove staples.
If the paper edge next to the staple does not contain any information you could consider to just cut ...
- 155
3
votes
How to create PDF with scanned pages but selectable text?
From Adobe's website
Recognize text in a Scanned PDF file
When you scan paper documents to PDF, you’re really just taking
pictures of those documents. That’s great for photos and other ...
- 21.2k
3
votes
ffprobe OCR of a subtitle stream
Yes, there is a new way.
If you like, you can try out an upcoming addition to ffmpeg which provides the capability for processing subtitles in filter graphs. Currently available here:
https://github....
- 31
2
votes
How to extract text with OCR from a PDF on Linux?
Asprise OCR Library works on most versions of Linux. It can take PDF input and output as search PDF.
It's a commercial package. Download a free copy of Asprise OCR SDK for Linux here and run it this ...
2
votes
How to automatically find non-searchable PDFs
I will use a trick, it is a peculiar secondary fact I noticed if a pdf file doesn't have any font it is usually not searchable. So knowing this we can use pdffonts.
First 2 lines of the pdffonts are ...
- 2,806
2
votes
How to search a PDF where text is just image?
You can use the free spaceOCR online ocr tool. It can convert any PDF into a searchable PDF:
Upload your PDF and select the OCR language
A few seconds later you can download the new version of the ...
- 156
Only top scored, non community-wiki answers of a minimum length are eligible