Tools6 min read
How to Split PDF Pages Online (Step-by-Step Tutorial)
Learn how to use the Split PDF tool step by step: upload one or more PDFs, choose pages to keep, preview the result, and download securely in your browser.
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Software Development Blog
Step-by-step tutorials and practical guides on Python, FastAPI, PostgreSQL, React, Next.js, and backend engineering — written from real projects.
24 articles
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Tools6 min read
How to Extract Text from PDF Online (Step-by-Step Tutorial)
Step-by-step tutorial for the PDF Extract Text tool: upload a PDF, select pages, extract readable text, and copy or download TXT in your browser.
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Tools6 min read
How to Merge PDF Files Online (Step-by-Step Tutorial)
Step-by-step Merge PDF tutorial: upload files, reorder the merge sequence, review the output filename and merge order, then download one merged PDF in your browser.
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Tools6 min read
How to Extract Images from PDF Online (Step-by-Step Tutorial)
Step-by-step tutorial for the PDF Extract Image tool: upload one or more PDFs, extract embedded images, preview the results, and download selected or all images in your browser.
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Tools6 min read
How to Convert PDF to Image Online (Step-by-Step Tutorial)
Step-by-step PDF to Image tutorial: upload a PDF, choose specific pages, select PNG or JPG output, preview pages, and download converted images in your browser.
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Tools6 min read
How to Convert Images to PDF Online (Step-by-Step Tutorial)
Step-by-step Image to PDF tutorial: upload images, configure page setup, organize and rotate image pages, preview the generated PDF, and save the final PDF in your browser.
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Tools6 min read
How to Convert Markdown to PDF Online (Step-by-Step Tutorial)
Step-by-step Markdown to PDF tutorial: edit markdown in a split-screen editor, customize theme and paper size, set metadata, preview pages, and export PDF in your browser.
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Tools6 min read
How to Use PDF Flow Builder Online (Step-by-Step Tutorial)
Step-by-step PDF Flow Builder tutorial: use the starter flow, upload a PDF, configure Compress PDF and PDF Output nodes, run the flow, and download the result package in your browser.
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Tools6 min read
How to Add Page Numbers to PDF Online (Step-by-Step Tutorial)
Step-by-step Page Number PDF tutorial: upload a PDF, choose page number position and format, adjust font size, add page numbers, and download the updated PDF in your browser.
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Tools7 min read
How to Overlay PDF Files Online (Step-by-Step Tutorial)
Step-by-step PDF Overlay tutorial: upload a base PDF and overlay PDF, configure page targeting and placement, apply the overlay, preview the result, and download the final overlaid PDF in your browser.
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Python12 min read
Dataclasses vs Pydantic — Python Data Validation Comparison
Compare dataclasses and Pydantic models for data validation in Python and FastAPI.
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Python3 min read
How to Connect Python FastAPI to PostgreSQL
Step-by-step tutorial on building a FastAPI + PostgreSQL CRUD API with SQLModel, psycopg, and Uvicorn. Create an employee table, connect your database, and verify everything works using the built-in Swagger docs.
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Python3 min read
FastAPI in the Philippines
In the Philippines, many young developers are learning programming. Some are students, some are fresh graduates, and others are career shifters. Most of them want tools that are easy to learn and useful for real projects and jobs. FastAPI is one of those tools. It is a modern Python framework used to build APIs. Today, many apps need APIs mobile apps, websites, online stores, and even AI projects. That is why API development is an important skill for developers.
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Python15 min read
History of Python – From Guido to Modern Python
Python is one of the most popular programming languages today — loved for its readability, beginner-friendly syntax, and power across web development, data, AI, and automation. This article covers Python’s origin story, key milestones, and why it keeps evolving.
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Python15 min read
History of FastAPI
FastAPI is a modern Python framework for building APIs. People like it because it is fast, easy to use, and it creates interactive API docs automatically. In this post, we will look at how FastAPI started, what it is built on, and why it became a popular choice for many teams
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Tools15 min read
What Is a UUID? Format, Versions, Examples, and Best Practices
Learn what a UUID is, why it exists, its 8-4-4-4-12 structure, UUID vs GUID, UUID versions (v1, v3/v5, v4, v7), database pros/cons, best practices, and examples you can copy.
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Programming5 min read
JWT stands for JSON Web Token.
It’s a compact, URL-safe way to represent claims (data) between two parties, often used for authentication in web and mobile apps.
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Python15 min read
Python FastAPI Schema - Understanding Data Validation
When you build an API, you’re always sending and receiving data. A schema is simply the shape of that data: which fields exist, what their types are, and which ones are required
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Python10 min read
Why Python FastAPI Stands Out Over Other Frameworks
In the world of web development with Python, there are many popular frameworks: Django, Flask, FastAPI, Tornado, and more. Among these, FastAPI has become very popular in a short time. Many developers choose it for modern APIs, microservices, and high-performance systems
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Android15 min read
Bottom Navigation Bar Java Android Studio with Fragments
How to Make a Bottom Navigation Bar in Android Studio Using Java: A Simple Guide and Step by Step
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PDF Toolkit5 min read
How to Merge PDF Free and Secure with Online Tools
This guide will show you how to merge PDFs quickly, securely, and completely free using our online PDF toolkit.
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Android10 min read
Custom Recycler View in Android Java
This guide is designed to be simple and easy to follow, helping you step by step in understanding and implementing a custom Recycler View in your Android projects using Android Studio.
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Python12 min read
How to Build Your First FastAPI App – Step-by-Step
This guide is perfect for beginners who want to start using FastAPI to build modern Python APIs quickly and efficiently.
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React8 min read
How to Install and Set Up React with Vite and TypeScript (Step by Step)
This guide is perfect for beginners who want to start using React with TypeScript in a fast and efficient way. By the end, you will have a working project that is ready for development.
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