Blog
Practical guides for working with PDFs - privacy-first, in the browser.
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AI audio transcription to PDF: turn meetings, lectures and interviews into a clean, readable transcript
Transcribe audio to text with AI: upload a recording and get back a formatted transcript PDF - with automatic language detection, multilingual recordings split into labelled tracks, optional timestamps, and 2 free hours of transcription every month.
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OCR that stays on your device: turn scans into editable documents - and even edit the scan itself
Most OCR tools upload your scan to a server and hand you back a wall of plain text. Here's how on-device OCR extracts the text from a scanned PDF or photo, lets you fix it, and can even rewrite the text directly on the original scan - logos, stamps and layout intact.
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How to convert a PDF into an editable PowerPoint (and what actually survives)
Turning a PDF back into editable slides is harder than the reverse. Here's how the conversion works, the difference between a faithful copy and an editable rebuild, and exactly what comes through clean versus what doesn't.
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Convert PowerPoint to PDF: why fonts are the hard part (and how to get it right)
A PDF is the safest way to share a deck - the layout can't shift and anyone can open it. Here's what a good PowerPoint-to-PDF conversion preserves, why fonts are the trickiest piece, and how to get the closest match.
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PDF to HTML, done faithfully: real text, real fonts, real graphics - in your browser
Most PDF-to-HTML converters give you a blurry page screenshot or a wall of jumbled text. Here's how a faithful conversion keeps your fonts, colors, vector graphics, images and even gradients - as one self-contained HTML file that never leaves your device.
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PDF to JPG, PNG or WebP: converting pages vs. extracting embedded images
Two different jobs hide behind 'PDF to image': rendering each page as a picture, and pulling out the photos embedded inside a PDF. Here's which one you actually need, plus how to pick format, quality, and resolution.
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Combining photos into a PDF: page size, margins, and the JPG-passthrough trick
Practical tips for turning a folder of photos into a clean PDF. Why margins matter, how 'Fit' differs from A4, and what to do when your images are different sizes.
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Why we built our PDF tools to run in your browser
An honest take on the privacy/performance tradeoff of WASM-based PDF tools - and why uploading files to do simple operations is a bad default.
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How to password-protect a PDF (and what the password actually does)
A short, honest guide to PDF passwords: which encryption to use, what the permission flags really mean, and the one rule that matters more than the algorithm.
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PDF to Word: when does it actually preserve formatting?
A frank look at PDF-to-Word conversion. What works, what doesn't, and why a 'perfect' converter is mathematically impossible.
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PDF compression in 2026: what actually works
Why some PDFs shrink 90% and others barely move. A practical guide to compression levels, what gets stripped, and when to use which.
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How to merge PDFs without uploading them anywhere
Five ways to combine PDF files. Only one of them keeps your files on your device - and it's the easiest.