01
Zero-width characters: what they are and why they break copied text
Learn what zero-width spaces and joiners do, where they come from, and how to remove them before they break search, URLs, or forms.
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Understand the characters behind the cursor.
Original, manually reviewed notes for diagnosing the invisible details that make copied text wrap, match, parse, or paste differently from what you see.
02
Smart punctuation vs ASCII: when plain text is the better choice
Understand when curly quotes, fancy dashes, ellipses, and other smart punctuation should be kept or converted to plain ASCII.
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Weird whitespace in copy/paste workflows
A practical guide to non-breaking spaces, narrow no-break spaces, tabs, and other odd whitespace that breaks copied text.
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Why copied text breaks across ATS, CMS, markdown, and email
A practical guide to why copied text fails in ATS forms, CMS editors, markdown, email, and other systems even when it looks fine on screen.
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A pre-publish checklist for copied text
Use this practical pre-publish checklist to catch Unicode punctuation, weird whitespace, invisible characters, and formatting issues before you submit or publish copied text.
Read guide06
How to identify an invisible Unicode character
A practical field guide to identifying hidden Unicode code points in copied text and confirming which character is causing a failure.
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A decision tree for safe Unicode normalization
Decide whether to preserve, replace, flag, or remove a Unicode character without flattening meaningful typography or language shaping.
Read guide08
Cleaning text copied from PDFs and OCR
Diagnose line breaks, soft hyphens, odd spacing, and OCR substitutions before reusing text copied from PDFs or scanned documents.
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