Scanner App: App for Scanning Documents

Our iOS developers developed a PDF scanner app for scanning documents or any sort of image and converting them into PDF files. You can scan, store, or export multiple documents using this app. The app has a feature to add markups, watermarks, and e-signatures. There is also an option to extract or translate the text using OCR technology.

scanner app

App Details












Optical Character Recognition

App Details

  • Scanning: WeTransfer/ WeScan- Github
  • Markups: LazyPDFKit
  • OCR: Google Firebase ML Kit-Text Recognition (Cloud Services)
  • Language: SVPinView- GitHub
  • E-Signature: EPsignature- Github
scanner app feature


Our team of iOS app developers developed this PDF scanner app. Available on Apple App Store, this app scans any document or image and converts them into formats like PDF or JPG. You can store these documents locally to access without the internet or export them to iCloud, Google Drive, Dropbox, or Box.

You can add markups like watermarks and e-signatures on the documents. There is an option to protect your documents by adding a password to the app. The app also has a feature to extract and translate text in over 18 languages using OCR(Optical Character Recognition) Technology. You may also share these scanned documents via email and other options. Another feature called the batch scan is available for the paid version.

Our Client and His
Project Requirements

Our client is based in Ireland. He is also one of our regular clients for whom we have developed many other utility apps like the QR Code reader app.

He owns an app publishing firm and has a passion for solving problems that people face day-to-day. He also actively reviews apps on the Apple App Store to find out which apps are in demand. He also studies different apps to understand what they lack.

He found that there are a few PDF scanning apps available but they do not have all the functionalities that the users need. This why he decided to develop a single PDF scanner app with the ability to scan, convert, export, store, print, and translate any document or image.

client requirement

Solution We Provided
to Our Client

After the client reached out to us, we discussed and understood his requirements. We develop one easy to use app that performs all the necessary functions of a PDF scanner.

The developed app to scan PDF scan document scans any document and image and converts them into PDF or JPG format. We used WeTransfer/ WeScan for this function. You can also add a watermark or an e-signature to the document as we have used the LazyPDFKit and EPsignature libraries.

Further, we also integrated OCR technology so that you can extract any text from the document or translate the text into over 18 languages. You can also subscribe to the paid version. You can check out the details features of this app below.


Key Features We Integrated

Scanning Document

Being a ‘documents scanner’ app, the main feature of this app is the “Scan” feature. You take any image from the camera roll or use the camera to scan any document, business card, or text on an object. This document scanning app converts them into PDF files and stores them locally.

Store Documents

You can store all the scanned documents with this one of the scanner apps. You can create folders of any name and save these documents. You can easily access the locally stored files without the internet or export them to different storage services like iCloud, Dropbox, Google Drive, and Box.

Export Files
Export Files

You can easily share the scanned files and folders with others. You can open the documents using another application or format like JPG. Further, you can also send the documents using email, other sharing apps, or export files using iCloud, Google Drive, Dropbox, or Box.

Print Documents
Print Documents

The ‘Print’ feature lets you print the documents after you are done scanning them. Before printing any document, you can adjust and crop the area you want to print, in fact, you can choose from different paper sizes for printing like Letter, A3, A4, A5, Business Cards, and Legal.

Add Markup
Add Markup

This is a unique feature that we added to our PDF scanner app. You can use markups, watermarks, or e-signature to differentiate, prove authenticity., or inscribe authority. You can customize markup in any color you prefer. You can also edit, smudge, or erase the markup you create.

Add Signature

A subset of markups, you can add an e-signature to the document you want to print or store. Just choose a signature from your smartphone gallery, or scan from the camera, or even draw a signature on the app itself. You can adjust the color, size, and position of the signature.

Add Watermark
Add Watermark

After scanning an image or document you can add a watermark using this app scanner. You can choose from various different fonts and colors to create a unique watermark. You can also position the watermark on the document in your preferred style, size, angle, and position.

Extract Text
Extract Text

The app is not just to scan documents into a PDF. You can also avail of another subscription service like extracting text. After scanning the document, you can select text from the document and extract it to other documents or files, very easily. This uses optical character recognition(OCR).


It doesn’t matter if you capture an image at a slightly wrong angle or the colors of the image need contrast adjustments. This app has the feature to make adjustments to the document like color contrast, brightness, rotation, crop, add markups, or adjust the color of the document with filters.

Translate Text
Translate Text

This app can be used for text recognition and translation as we integrated Cloud OCR technology. After you scan the PDF, you can translate the text in it to any of the 18 available languages like English, Japanese, Korean, French, Spanish, Russian, Chinese, and Arabian.

Batch Scanning
Batch Scanning

This feature is only for the paid version. When you subscribe to the app, you unlock the batch scanning feature. You can easily scan multiple documents at one go. The batch scanning features lets you scan dozens of paper documents simultaneously instead of scanning one document.


You can choose to select the ‘Lock App’ option and safeguard you app data using a Pincode. Nobody can open the app if they don’t know the pin. Further, you also have paper size options to work with viz. A3, A4, A5, Legal, Business Card, and Legal that you can change anytime.

Do you want to build any utility app? Want to build an image translator, QR/Barcode scanner, PDF scanner, GPS navigation, or any other app? Want to know how much it might cost to build it?

iOS App Development

The client had the requirement of an iOS app only. We assigned our Sr. iOS developer with 5+ years of experience.

The app is quite complex when it came to scanning and producing high-quality PDFs as well as JPG files. For this, our developers spent some time researching libraries that can be helpful. The libraries needed to work for both auto and manual screen captures.

The next step was to integrate the batch scan feature with drag and drop functionality. Apart from this, we had to look for another code library that can provide us with Highlighter, Smudge, Undo, Redo with Multiple color options, and Thickness sliders.

The client wanted to have all the features from different reference applications into this application so we had to adjust and customize many readily available code libraries. We prepared the POC for each functionality first and then integrated them with the design.

The entire process of business analysis, design, development, testing, and deployment took 7 months.

iOS App Development

Technology Stack

Swift 5

Programming Language:

Swift 5






Core data-iOS, MySQL- Web/PHP


Ease in Scanning

The app has made it extremely easy to scan any document or image and convert it into PDF file format. You can also share or export these documents with other cloud storage services or applications.

Adding Markups

If you want to differentiate your document from others, want to prove authenticity, or inscribe authority on any document you can add e-signatures and watermarks.

Translate Anything

Using this app, you can also extract text from any document and translate it into over 18 languages like English, Japanese, Korean, French, Spanish, Russian, Chinese, and Arabian.

Do you want to see the app screens and features in detail? We have a portfolio that you can can check out.

Appreciation from Clients


Douglas Laver


The Space-O team were great to work with. Every part of the process went as per the agreed schedule, and the finished prototype met, and in most cases, exceeded my expectations. While Space-O wasn’t the most price competitive of the quotes I received, the quality of their work, professionalism, and product, was well worth the additional cost. Highly recommend, and will continue to use their services for future projects.



United Kingdom

They performed in all aspects excellently. They have given well-appreciated discounts at various stages of the project and also with suggestions that saved cost. When it comes to delivering, they were always ahead of time. We don’t know how they do that but that’s very impressive. Their agility and customer support is on a different level, well appreciated.


Ashton Asherian


Space-O Technologies showed genuine interest in the project. The efficient team delivered quality results at a cost-effective price. We wanted to develop a minimum viable product that would be ready for scalability. It was a great experience working with them. We are so happy that we had the chance to meet Space-O. We love their work. Their project management and structure were amazing. The team loved what they were doing. There was passion behind every single piece of work.