The Easiest Way to Convert Scanned Document to PDF

2017-09-12 21:52:54 / Posted by Connie Wisley to PDF Follow @ Connie

Have you ever noticed that scanned documents have greatly substituted paper documents in our office? Why? Here are the top reasons why people prefer scanned document:

  • Cut the use of papers and make more room
  • Save time on filling and organizing these files
  • Share documents online conveniently
  • Save money

Then, how much do you know about scanned document, and any idea about how to convert scanned document to searchable and editable PDF? Keep reading!

What is Scanned Document?

Scanned document is the digital copy obtained after you send the paper documents, such as letters, contracts, bank receipts or other documents into a scanner. All the information on the paper documents will be captured as image onto the digital copy. Since scanned document are image-based files, a scanner program often offers image and PDF format to store the scanned documents. So, scanned document also called as scanned PDF or scanned image files. 

The Easiest Way to Convert Scanned Document to PDF

To convert scanned document to a PDF that allows users to edit and search PDF text, OCR technology is required. So, you will need OCR software to perform such a conversion. There are numerous OCR software available on market, but here you are highly recommended to use Cisdem PDF Converter for Mac and Readiris 16 for Windows. Read on to find out the reasons and tutorial in details.

Cisdem PDF Converter OCR for Mac

A dedicated PDF OCR program to convert any scanned documents (PDF and Image) into PDF and other 15 formats, with original file quality retained.


  • Convert scanned document to PDF with original file quality preserved
  • Convert scanned document to PDF accurately, no concerns on OCR errors
  • Process OCR fast
  • Process OCR in batch
  • Convert scanned document to 16 formats: PDF, DOCX, DOC, PPTX, PAGES, XLSX, RTFD, TEXT, KEYNOTE, EPUB, HTML and Image (JPEG, BMP, PNG, GIF, TIFF
  • Extended features: Create PDF, Protect and Unprotect PDF, Compress PDF
  • Affordable price for life time license


  • Cannot edit scanned document within the program

Free Download

Convert scanned document to PDF on mac

  1. Drag and drop single or multiple PDF files into the mac ocr program.conver scanned document to pdf
  2. Click on the OCR button and turn it ON. Choose output format from the drop-down list as PDF. If you just want to convert one page or several pages, choose the page range.convert scanned document to pdf on mac 02
  3. Click “Convert” to convert scanned document to PDF on mac.


For more accurate OCR results, you can click the "Settings" icon. The file will be automatically marked as Texts, Images or Tables for the program to recognize each part accurately. You need to check if all OCR applied zone is marked correctly, if not or improperly, manually adjust (deleted the mark box first, then click on one of the icons under OCR applied zone, now you can drag a mark box to select all zone you want to be marked as the format you prefer). 

mark ocr

Nitro PDF Editor for Windows

As an all-in-one PDF editor to create and manage PDF files on Windows, Nitro PDF Editor is also equipped with a powerful OCR engine, to transform scanned documents into editable or searchable PDF, and Microsoft Office formats.


  • Convert scanned document to PDF accurately
  • Provide 2 different OCR modes: Searchable and Editable
  • Create, manage and organize PDF pages
  • Connect with iCloud service, you can work everywhere


  • Cannot batch process OCR
  • Export scanned documents to limited output formats

Convert scanned document to PDF on Windows

  1. Run the program and open your scanned document with Nitro directly, or go to Home>Insert to import scanned documents.
  2. The program will automatically recognize your file is scanned or not. Click “Use OCR”, the OCR will be processed instantly. Also, you can go to Review>OCR to tweak the OCR setting, makes the scanned document searchable only, or makes the scanned document both searchable and editable.convert scanned document to pdf
  3. Then, go to the output zone, and choose “PDF” as the output. Your scanned document will be converted to PDF format on Windows.

If You are An Adobe Subscriber

But if you have installed Adobe on your Mac or Windows PC, Adobe can convert scanned documents to PDF as well. Though you can not perform Adobe OCR on scanned documents in batch, it brings accurate results, also with original file quality preserved.

  1. Open the scanned document in Adobe Acrobat (eg.Adobe Acrobat Pro DC). If the scanned document is in PDF format, open it in Adobe directly; If the scanned document is in image format, run Adobe first, then select “Create PDF” in the wizard, import the scanned image into Adobe.
  2. Then, go to Tools>Enhance Scans>Recognize Text>In This File. Click “Recognize Text” and the OCR process will be automatically started in Adobe.convert scanned document to pdf
  3. You will find the scanned document is editable and searchable now, save the file. The scanned document is now converted to PDF format.

Final Words

There are more alternatives to convert a scanned document to PDF format, but the conversion quality is always the top concern for most users. To yield the best OCR result, a dedicated OCR program is necessary.

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