OCR vs IDP: improve your document transformation process
Unlike OCR (Optical Character Recognition), IDP (Intelligent Document Processing) utilises AI and computer learning to ensure higher levels of accuracy when interpreting and converting data. Learn more…

What is the difference between OCR and IDP?
OCR (Optical Character Recognition) reads documents and converts them into text, but it only looks at content rather than understanding it, so errors like transposed numbers are common. IDP (Intelligent Document Processing) uses AI and machine learning to interpret structured and unstructured content, recognise new formats automatically and flag exceptions, delivering far higher accuracy.
Most are familiar with the term OCR (Optical Character Recognition), it has been around for years and underpins many solutions that scan PDFs, text files, and other documents.
To elaborate, it converts those formats into text files removing the need for double keying, and offers the promise of reduced costs and a reduction in errors.
However, for most, the reality is OCR is only effective for basic-level conversion. This is because the application is not intelligent and is simply looking at the file and extracting it.
Thus common reading errors such as numbers being transposed as letters and vice-versa remain a constant challenge.
In contrast, IDP (Intelligent Document Processing) uses AI and computer learning to interpret data from structured and unstructured content, leading to significantly higher levels of accuracy.
If you are looking to reduce the costs of double keying across your business processes, whether that is application forms, or inbound orders and invoices then what follows will ensure you make the right purchase decision and are not held-back in your document transformation process by legacy technology.
Utilise Intelligent Document Processing today
Reduce the cost of double keying and improve accuracy with IDP
In this blog, we will cover…
- What is Intelligent Document Processing (IDP)?
- Why is IDP important to me?
- Account Payable process improved with IDP
- Extending IDP across other business processes
- Connecting to captured information into the downstream processes
What is Intelligent Document Processing (IDP)?
At the heart of Intelligent Document Processing (IDP) are a mix of technologies and processes including artificial-intelligence-based and computer learning.
To expand, these technologies analyse and make intelligent predictions of content contained in structured, semi-structured, and unstructured documents.
So unlike legacy OCR that is looking at content, IDP is reading and making contextual choices about the content. Thus, making IDP applicable to a wider range of business process tasks.
Why is IDP important to me?
IPD offers great flexibility of use than OCR and therefore a better choice of technology that can reach across many processes within a business.
An early win for businesses migrating to IDP is automation of the Accounts Payable process. Transalis own research*, supported by other researchers such as Billentis** highlight savings of 60% are possible by simply removing the need to double-key invoices.
Accounts Payable process improved with IDP
Account Payable Automation from Transalis leverages the technological advances of IDP to the benefit of our customers in several crucial ways. Below are a few examples.
Faster onboarding leading to rapid ROI
OCR technology relies on each supplier’s invoice specific invoice format to be mapped so that the technology “knows” where to look for certain fields such as a Purchase Order for example.
In fact, this process can take up to 2 days development work per supplier, resulting in a solution roll-out that could take months if not years.
On the other hand, IPD uses machine learning, built-up from processing millions of documents annually to immediately recognise formatting within a newly presented invoice.
Moreover, combined with AI that starts to make decisions on where to look for fields such as the Purchase Order but also the territory, currency, and mandated fields.
Hence, this reduces the onboarding of new suppliers from days to hours.
Early identification of BAU errors
As mentioned earlier, OCR is looking and not reading a document creating challenges in differentiating words and numbers.
Also, this is true of format changes to a document. For example, a supplier decides to update their invoice and change the position of the Purchase Order number. With traditional OCR solutions, this would create a failure in the process or worse still process the document incorrectly.
Furthermore, as IDP is reading each new invoice and comparing it to what has been processed before these type of format changes, adjustments are easily spotted and flagged as an exception for review.
Additionally, to reduce the correction time for such exceptions, Transalis inbound invoice automation will place the invoice in an exceptions queue and issue an alert email to the user.
Thus, the user can view the specific invoice via their online platform and use the exception tool to review the errors highlighted and make on the fly corrections.
Cheaper to deploy than traditional OCR based solutions
The use of machine learning and AI to deploy an AP solution reduces the development resources typically required with OCR solutions.
Thus, this results in a reduction of cost and time during the implementation phase. Overall, meaning better value for our customers.
Extending IDP across other business processes
As in the example of invoice mapping, the machine-based learning derived from processing millions of different documents annually and AI technology used by Transalis results in a library of pre-trained documents that can be deployed at pace.
Transalis can deploy a solution that resolves many laborious and time-sensitive processes, whether that is scanning utility bills as part of a KYC process, insurance claim submission or expense receipts via a phone app,
Connecting captured information into the downstream processes
Smart extraction of information will deliver significant savings to the business in both time and money.
Overall, our recommendation is to leverage these savings to directly integrate with your specific back-office systems.
In fact, Transalis offers a range of off-the-shelve API integrations into many ERP, CRM, accountancy and enterprise applications.
Frequently asked questions
- What is Intelligent Document Processing (IDP)?
IDP combines AI and machine learning to analyse and interpret content in structured, semi-structured and unstructured documents. Unlike OCR, which simply extracts what it sees, IDP reads documents contextually, making it applicable across a much wider range of business processes.
- Why does OCR struggle with accuracy?
OCR looks at a document rather than reading it, so it often confuses similar looking numbers and letters. It also requires each supplier's invoice format to be mapped individually, a process that can take up to two days of development work per supplier.
- How does IDP speed up supplier onboarding?
IDP is trained on millions of documents, so it recognises formatting in a newly presented invoice immediately rather than needing a bespoke mapping exercise. This reduces onboarding of new suppliers from days to hours.
- What happens when a supplier changes their invoice format?
IDP compares each new invoice against what it has processed before, so format changes are spotted automatically and flagged as an exception for review, rather than causing the document to fail or be processed incorrectly.
Read next
- 27 October 2021Transforming Your Invoice ProcessesLatest report from Transalis, demonstrating how automating invoice processes can transform business efficiency.Read more
- 25 February 2022A report from Transalis: Frictionless business for the futureA report exploring how our clients have leveraged digital transformation and automation of processes for frictionless business.Read more
- 18 August 2022A report from Transalis: Retail resilience in a time of recessionBusiness report with 3 beneficial strategies to build retail resilience during a time of recession. Optimise and automate business…Read more