https://editmypdf.dev/blog/ Engineering notes on editing PDF text in the browser. en https://editmypdf.dev/blog/exporting-real-text/ https://editmypdf.dev/blog/exporting-real-text/ Wed, 28 Oct 2026 09:00:00 GMT How Edit My PDF removes the original strings from a page's content stream, embeds a subset of the font pdf.js decoded, and writes your edit as positioned text rather than a picture. https://editmypdf.dev/blog/what-the-editor-leaves-alone/ https://editmypdf.dev/blog/what-the-editor-leaves-alone/ Wed, 21 Oct 2026 09:00:00 GMT Covered text, tables, Type 3 fonts, form XObjects, phantom spaces and the lines you did not touch: the deliberate limits of editing a PDF in place. https://editmypdf.dev/blog/mixed-face-paragraphs/ https://editmypdf.dev/blog/mixed-face-paragraphs/ Wed, 14 Oct 2026 09:00:00 GMT A textarea holds one font. A paragraph with a bold lead-in needs a contentEditable editor that owns its DOM, maps every edit into styled spans and keeps the page's line layout. https://editmypdf.dev/blog/exactly-as-the-page-prints-it/ https://editmypdf.dev/blog/exactly-as-the-page-prints-it/ Wed, 07 Oct 2026 09:00:00 GMT Fitting every run and line to its printed width, keeping a block's own baselines and breaks, measuring the baseline in the browser, and reading colour from the pixels. https://editmypdf.dev/blog/nothing-leaves-your-browser/ https://editmypdf.dev/blog/nothing-leaves-your-browser/ Wed, 30 Sep 2026 09:00:00 GMT pdf.js in a web worker, pdf-lib for writing, IndexedDB for storage and no server at all. What that architecture buys, what it costs, and how to verify it. https://editmypdf.dev/blog/why-editing-pdf-text-is-hard/ https://editmypdf.dev/blog/why-editing-pdf-text-is-hard/ Wed, 16 Sep 2026 09:00:00 GMT No paragraphs, subset fonts with no space glyph, spacing operators that leak, phantom spaces, mixed faces and browsers that round: the real reasons a click can shift a line.