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Preciso de um WebApp que funcione perfeitamente em navegadores Android (e em outras plataformas) capaz de receber um documento de venda — seja ele um PDF enviado ou uma foto tirada pelo aparelho —, reconhecer as informações contidas e gravá-las em tabelas já existentes no SQL Server. O leitor deve identificar texto em português, lidar com diferentes resoluções e manter boa taxa de acerto em cenários de digitalização comum. A pilha tecnológica fica a seu critério, desde que o front-end rode no navegador e o back-end dialogue com o SQL Server por meio de API segura. Dados que quero extrair: • Informações de venda • Informações do cliente • Detalhes do produto • Lote Entrega esperada: código-fonte limpo, scripts de banco, documentação das regras de extração e um pequeno exemplo funcionando que mostre os registros sendo gravados no SQL Server. Mostre-me sua experiência em OCR, parsing de PDF/imagem e integração com SQL Server — é nisso que vou me basear para escolher o profissional. Se algo não estiver claro, avise já na primeira mensagem para ajustarmos o escopo juntos.
Project ID: 40447514
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155 freelancers are bidding on average €766 EUR for this job

Hi - Elias here from Miami. The primary challenge in developing an Android OCR WebApp is ensuring accurate text recognition across varying input qualities and browser environments. OCR processing can be resource-intensive, especially on mobile devices, leading to potential performance bottlenecks. Common pitfalls include inadequate error handling and poor scalability. For instance, if the OCR service fails to recognize text due to low image quality, simply retrying without a fallback can degrade user experience. Integrating OCR output with SQL Server necessitates careful management of data integrity and transaction handling to avoid race conditions. I propose a microservices architecture, where OCR processing is handled as a dedicated service. This allows for better scalability and separation of concerns. The implementation flow would be: Input (image) → Processing (OCR service) → Output (data stored in SQL Server). A critical decision to address early is the selection of the OCR technology. The choice between cloud-based versus on-device processing can significantly impact performance. What specific edge cases regarding data capture and user input have you encountered in your current environment? Looking forward to discussing this further.
€600 EUR in 5 days
8.5
8.5

Olá, Sou um desenvolvedor full-stack com mais de 11 anos de experiência em OCR, processamento de PDFs/imagens, integrações com SQL Server e desenvolvimento de WebApps responsivos para Android e desktop. Posso desenvolver um WebApp capaz de receber PDFs ou fotos tiradas pelo dispositivo, realizar OCR em português com alta taxa de precisão e gravar automaticamente as informações extraídas nas tabelas existentes do SQL Server através de uma API segura. O sistema poderá identificar: • Informações de venda • Dados do cliente • Detalhes dos produtos • Lotes Tenho experiência com: • OCR (Tesseract, Azure OCR, Google Vision API) • Parsing de PDF e imagens • ASP.NET Core / Node.js APIs • SQL Server • Interfaces web responsivas para Android • Validação e estruturação de dados extraídos Também entregarei: • Código-fonte limpo e documentado • Scripts SQL necessários • Documentação das regras de extração • Exemplo funcional completo gravando dados no banco Posso ajudar inclusive na definição da melhor arquitetura para garantir precisão, performance e escalabilidade. Obrigado, Christina
€285 EUR in 7 days
8.3
8.3

Hi, Vou entregar o WebApp completo — front-end responsivo para navegador Android, engine de OCR para PDFs e fotos de documentos de venda, e API segura conectando ao seu SQL Server existente. Para o OCR em português com diferentes resoluções, vou implementar um pipeline de pré-processamento (correção de rotação, binarização adaptativa e remoção de ruído) antes da extração de texto. Isso eleva significativamente a taxa de acerto em fotos tiradas com câmera, onde iluminação e ângulo variam bastante. As regras de parsing vou estruturar com regex e templates configuráveis — facilitando ajustes futuros sem alterar código. Perguntas: 1) Os documentos de venda seguem um layout padrão (NF-e, cupom fiscal) ou existem múltiplos formatos? Send me a message and we can go over the details. Best regards, Kamran
€277 EUR in 13 days
7.7
7.7

Prezado(a), Posso desenvolver seu aplicativo web para receber PDFs ou fotos, extrair com precisão detalhes de vendas, clientes, produtos e lotes em português e salvá-los em seu SQL Server por meio de uma API segura. Com meus mais de 7 anos de experiência em OCR, análise de PDF/imagem e integração com SQL Server, garanto alta precisão em diversas resoluções e navegadores — incluindo Android — entregando um código limpo e de fácil manutenção, com documentação completa e scripts de exemplo. Gostaria que eu fornecesse uma pequena demonstração funcional mostrando um documento de exemplo analisado e salvo no SQL Server antes de iniciarmos o desenvolvimento completo? Estou pronto para começar imediatamente e garantir um desempenho impecável em todas as plataformas. Hammad Hassan.
€500 EUR in 21 days
7.3
7.3

⭐⭐⭐⭐⭐ Proposal for Valuable Client's Android OCR WebApp Project We understand your need: a browser-based WebApp (Android-first, cross-platform) that accepts sales docs via photo or PDF upload, performs OCR on Portuguese text, extracts sales info, client details, product data, and batch, then securely inserts into your existing SQL Server tables with high accuracy across resolutions and scans. Proposed Tech Stack: AngularJS + HTML5 frontend for native camera/file access in Android browsers. Secure .NET Core backend API for SQL Server integration. Tesseract OCR (Portuguese-trained) with image preprocessing for 95%+ accuracy. CnELIndia Experience: Delivered 7 similar OCR projects (PDF/image parsing to SQL) with 98% accuracy on Portuguese docs; expert in AngularJS, Android WebViews, and secure DB APIs. How CnELIndia Team Helps You Succeed: Step 1: Immediate scope call to align on DB schema and extraction rules. Step 2: Build & demo working prototype (photo/PDF to SQL insert) in 10 days. Step 3: Iterative testing/refinement for accuracy and edge cases. Step 4: Deliver clean code, DB scripts, extraction docs, and live example. Ready to start upon your confirmation. Total timeline: 5 weeks. Let's schedule a call.
€500 EUR in 7 days
7.5
7.5

Hi there, I’ve reviewed your Android app requirements and would love to collaborate on your project. With 5+ years of experience in native Android development, I specialize in building high-performance, user-friendly apps with clean UI, optimized architecture (MVVM/MVI), and seamless API integration. I’ll start with a clear project roadmap, provide regular progress updates, and ensure the app is thoroughly tested for stability and performance before launch. Let’s connect to discuss your app idea in detail — I’m ready to bring your vision to life! Best, Bhargav Android Developer | Kotlin & Java Expert
€500 EUR in 7 days
7.0
7.0

Hello, I am interested in developing the Android OCR WebApp to SQL Server project. I understand the requirements of creating a WebApp that can accurately extract information from sales documents in Portuguese, handle various resolutions, and save them in existing SQL Server tables. My expertise in Mobile App Development, Android, Web Application, Web Development, AngularJS, and API integration will ensure a seamless solution. I plan to utilize OCR technology, PDF/image parsing techniques, and secure API communication to achieve the desired functionality. - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH I suggest a follow-up discussion to further delve into the project details and ensure alignment with your expectations. Best regards, Warda Haider
€250 EUR in 8 days
6.9
6.9

Posso desenvolver um WebApp responsivo que recebe PDFs ou fotos, realiza OCR em português e grava automaticamente os dados extraídos no SQL Server através de uma API segura. Tenho experiência com OCR, parsing de documentos, integração com SQL Server e aplicações web mobile-friendly. O sistema funcionará bem em navegadores Android e será otimizado para diferentes qualidades de imagem. Extração de dados: • Informações de venda • Dados do cliente • Produtos • Lotes Entregarei código-fonte completo, scripts SQL, documentação e um exemplo funcional gravando os dados no banco. Posso começar imediatamente e gostaria de analisar alguns documentos reais para garantir a melhor precisão no OCR.
€500 EUR in 7 days
7.1
7.1

Hi there, Reviewed your project — a web app with OCR functionality that works across Android and other browsers. That's totally doable. We've built similar apps handling document capture and data extraction to databases. Got a couple quick questions: What's your timeline looking like? And are you planning to use a third-party OCR API or build custom recognition? I have delivered 1500+ web and mobile projects over 14+ years — happy to share relevant examples. Thanks, Hasan
€250 EUR in 28 days
6.9
6.9

As an experienced Mobile and Web Application Developer, I am adept at creating efficient, reliable, and user-friendly solutions. Your Android OCR WebApp project completely aligns with my expertise and skills. With a comprehensive understanding of Java, Kotlin and React Native, I can deliver the precise functionality and performance your project demands. My experience with OCR, parsing PDFs/images and SQL Server integration will be paramount in ensuring a successful solution for your project. I am capable of handling different data resolutions while maintaining a high percentage of accuracy. Given the dynamic nature of sales data, efficient information extraction is essential, an area where I have proven skills. Moreover, I'm attuned to anticipating potential scope adjustments throughout the project journey to ensure your expected deliverables are met. I pledge to provide clean source code, comprehensive database scripts, detailed documentation of extraction rules and a working example that showcases records being successfully store in your SQL Server as expected.
€500 EUR in 7 days
7.0
7.0

Asif Ali Zaman's here, an Android expert and full-stack developer with 10+ years of professional experience. Having successfully developed various web and mobile applications, I'm confident that my skills perfectly align with your project needs. As highlighted in the project description, I have a strong command over OCR technologies, particularly extracting data from images/PDFs for accurate analysis. Not only do I possess the ability to flawlessly operate within the Android ecosystem, including diverse screen resolutions, but my proficiency extends to robust SQL Server connectivity through secure APIs. My aim is to build a high-performing WebApp that recognizes Portuguese text accurately in common scanning scenarios, and stores the relevant information (including sale details, customer information, product details, and lot numbers) efficiently into existing tables in your SQL Server. When choosing a professional for your project, I understand that it’s crucial to verify domain expertise and practical implementation. That's why I'm more than willing to share detailed insights into my past OCR-projects and parsing experiences upon request. With me, you get more than just a developer; you get a dedicated partner invested in your project's success – a professional who strives for clean codes and provides thorough documentation.
€500 EUR in 7 days
7.3
7.3

Hi, I can build a browser-based OCR web app that works smoothly on Android browsers and other platforms, allowing users to upload PDFs or capture photos and extract Portuguese sales document data into SQL Server. I have experience with OCR, PDF/image parsing, API development, and SQL Server integration. For this project, I can create a responsive front end for file upload and camera capture, a secure backend API for processing documents, OCR extraction for Portuguese text, and structured parsing rules for sales information, customer details, product lines, and batch numbers. My recommended approach is to use a web frontend with HTML5 or Angular, a backend in Node.js or .NET, OCR through Google Vision, Azure OCR, or Tesseract depending on budget and accuracy needs, and secure SQL Server inserts through validated API endpoints. I will also include preprocessing for different resolutions, image cleanup, error handling, and manual review support for low-confidence results. The final delivery will include clean source code, database scripts, extraction rule documentation, and a working example showing extracted records saved into SQL Server. I would be glad to help create a reliable OCR workflow for your sales documents. Best, Justin
€500 EUR in 7 days
6.6
6.6

Olá! ★★★★ ( WebApp de OCR compatível com Android, com análise segura de PDFs/imagens e integração com SQL Server via API ) ★★★★ Analisei atentamente os detalhes do seu projeto e compreendo que você precisa de um WebApp baseado em navegador que funcione de forma fluida no Android e em outros dispositivos para extrair dados de PDFs ou imagens, realizar OCR em português e armazenar os resultados estruturados em tabelas existentes do SQL Server, por meio de uma API segura. ⚜ Sistema de processamento de documentos baseado em OCR ⚜ Tratamento de upload de PDFs e imagens ⚜ Reconhecimento e análise de texto em português ⚜ Integração via API com SQL Server ⚜ Fluxo de dados de backend seguro ⚜ WebApp responsivo e multiplataforma ⚜ Extração de dados estruturados (vendas, clientes, produtos, lotes) Minha abordagem envolveria o uso de mecanismos de OCR como o Tesseract ou APIs de OCR em nuvem, um backend em Node.js ou .NET para a lógica de análise, e uma camada de API REST segura para enviar os dados estruturados ao SQL Server. Também garantirei o tratamento adequado de erros e a adaptabilidade a diferentes qualidades de documentos. Terei prazer em discutir detalhadamente as regras de extração e o mapeamento do banco de dados, para garantir que tudo esteja perfeitamente alinhado. Aguardo a oportunidade de colaborarmos. Atenciosamente, Farhin B.
€256 EUR in 10 days
6.6
6.6

Hi, this project involves building a robust OCR pipeline integrated with SQL Server from a web app on Android and other platforms, which aligns with my expertise in document intelligence and backend system design. The main engineering risk lies in reliably extracting structured data from diverse document inputs under varying image quality and ensuring secure, consistent ingestion into SQL Server. I usually structure such systems by separating the OCR ingestion layer from parsing and validation, then isolating the database write operations behind a secure API to maintain data integrity and scalability. My experience on the Custom Feature Development & Integration project involved deep backend API work and database schema alignment, while the AI-Driven Marketing Suite project sharpened my skills in document parsing and automation workflows. I approach reliability by incorporating fallback OCR models and confidence thresholds to flag uncertain extractions for review. These systems are designed for maintainability and long-term production use, with clear documentation and modular code. I can start by outlining the OCR ingestion pipeline and sketching the API architecture for secure SQL Server integration. Thanks, Hercules
€500 EUR in 7 days
6.4
6.4

Hi, We’re Doomshell Software Pvt. Ltd., with 20+ years of experience in building OCR-based automation systems and data extraction pipelines. Your requirement for an Android-friendly web app that processes PDFs/images, extracts structured data in Portuguese, and stores it in SQL Server aligns perfectly with our expertise. Our approach: OCR Engine Integration • Use Tesseract/Google Vision optimized for Portuguese • Handle varying image quality and document formats Intelligent Data Extraction • Parse OCR output into structured fields (sales, customer, product, batch) • Rule-based validation to improve accuracy WebApp Interface • Mobile-friendly upload + camera capture • Clean UI for quick document processing Secure Backend & API • Node.js/Python backend with secure API • Seamless SQL Server integration with validated inserts Testing & Handover • Real-case testing with sample documents • Clean code, DB scripts, and documentation We focus on building reliable OCR systems that work in real-world scenarios, not just ideal inputs. Quick question: Do your sales documents follow a consistent format/template, or should we design the extraction logic to handle multiple layout variations from the start? Best regards
€500 EUR in 7 days
6.4
6.4

I see you're looking to create a WebApp that runs smoothly on Android browsers and potentially other platforms. With around 10 years of experience in mobile and web development, I can help you build a solid application. Your goal of implementing OCR functionality is key for the user experience, and I’m familiar with technologies like AngularJS and APIs that will support this. I've built a variety of projects like a regional booking platform for a tutoring company, an internal CRM for a property agency, and a React Native field-reporting app, which have involved similar tech stacks. Let’s connect to discuss how I can help make your vision a reality. Could you please clarify the following questions to help me better understand the project? Q1: What specific features do you envision for the OCR functionality? Q2: Are there any specific design or user interface preferences you have in mind? Q3: How do you plan to manage data synchronization between the WebApp and SQL Server?
€600 EUR in 6 days
6.6
6.6

Hi, I propose to develop a WebApp for Android browsers that can receive sales documents in PDF or image format, extract key information, and save it to existing tables in SQL Server. The solution will include accurate text recognition in Portuguese, compatibility with various resolutions, and reliable performance in common scanning scenarios. I will ensure a secure API connection between the front-end and SQL Server. Let's discuss further. Please start the chat so we can discuss this project in more detail. Regards, Sai Bhaskar
€350 EUR in 10 days
6.0
6.0

With a strong background in OCR, PDF/image parsing, and SQL Server integration, I propose developing a WebApp for seamless document recognition and data extraction on Android browsers. My question: Are there specific formatting requirements for the extracted data to ensure accurate storage in the SQL Server tables? Regards, Yogesh Kumar
€450 EUR in 6 days
5.8
5.8

Hello, I am Vishal Maharaj, with 20 years of expertise in HTML5, AngularJS, Web Development, API, Android, Mobile App Development, and OCR. I have carefully reviewed your requirements for the Android OCR WebApp to SQL Server project. To achieve this, I propose utilizing Tesseract OCR for text recognition in Portuguese, implementing a responsive front-end for Android browsers, and establishing a secure API for communication with the SQL Server. The solution will include data extraction for sales information, client details, product specifics, and batch information. I am confident in delivering clean source code, database scripts, extraction rules documentation, and a functional example showcasing data storage in SQL Server. Let's discuss further to align on the project specifics. Cheers, Vishal Maharaj
€500 EUR in 5 days
5.8
5.8

Hello, I am very interested in your project and have strong experience with OCR, PDF and image parsing, and SQL Server integration. I have developed browser-based applications that accurately read text in different languages and resolutions, then save it securely to databases. My focus is on reliable data extraction, clean code, and clear documentation to make your workflow smooth. I would like to arrange a short meeting to discuss your requirements and confirm how I can deliver this system successfully. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira
€500 EUR in 7 days
5.4
5.4

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