Tech articles, tutorials, and guides from The Tools Kit.
If you cannot highlight the text in your PDF, it is a scan, and normal converters cannot read it. OCR is the missing step. Here is how it works and when you need it.
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Merging PDFs joins your original pages into one document, exactly as they are. Here is how to do it free in your browser, and why quality loss is not a concern.
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These two tasks sound alike and get mixed up constantly. One makes a PDF editable, the other places a PDF inside a document you are writing. Here is which is which.
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It is almost never the text. Images, especially scans, drive nearly all PDF file size. Understanding why gives you the power to keep files small from the start.
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Nearly every JSON parse failure comes down to one of five mistakes. Learn to spot each one on sight, with a before and after example for every error.
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A hash is a digital fingerprint for data. MD5 and SHA-256 both make fingerprints, but only one is safe for security. Here is the difference in plain language.
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P@ssw0rd! is weak. correct-horse-battery-staple is strong. The reason is length, and it changes how you should think about every password you create.
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Base64 is a way to write any data using only safe text characters. It is everywhere in web development, and the most important fact about it is what it is not.
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When a portal says your PDF is too large, the fix is compression, and knowing which level to choose. Here is how it works and what happens to your quality.
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