Free online PDF tools against an app that keeps the file on your Mac
The free PDF tool sites compared in November 2026: file size limits, hourly and daily caps, how long they keep your upload, and what an on-device app does differently.
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The free PDF tool sites compared in November 2026: file size limits, hourly and daily caps, how long they keep your upload, and what an on-device app does differently.
How developers and businesses turn data into PDFs today, the services, libraries and browser engines they use, and the problems they keep running into: page breaks, fonts, forms, accessibility, signing and price per document.
With one well-known scanner app retired in 2026, what is left for scanning paper on an iPhone: the built-in scanner, the free and paid scanner apps, what they charge, and where the scan goes.
The two ways a Mac talks to a signing token, PKCS#11 and CryptoTokenKit, which PDF apps document each one, what PAdES means for the file, and where Better PDF stands.
What the main PDF apps for Mac cost in November 2026: one-time licences against subscriptions, what each free tier gives you, and what three years costs if you mostly read, fill and sign.
Upcoming, not shipped: Better PDF Designer, for designing a document once on the Mac and filling it from JSON or CSV, and the Better PDF SDK, the same engine for developers. Everything on device, no price per document.

Fill and sign any PDF form on macOS without a subscription: fields vs flat forms, typing on a scan, placing a signature, saving a copy and what flatten means.

Make a scanned PDF searchable on macOS with on-device OCR: what the invisible text layer is, why language and scan quality matter, and the steps.

Sign a PDF on macOS with a keychain certificate, smart card or USB token: the steps, what a certificate signature proves, PAdES and time-stamps.

What happens to a file on a PDF converter site, when uploading is fine and when not, how to spot an on-device tool, and Mac options with no upload.

How to read PDFs on a Mac in the dark: why dark mode leaves the page white, why inverting the screen ruins images, night reading, warm tint and e-ink.

Better PDF is a native PDF app for Mac: read without glare, fill any form and sign with a certificate or USB token, for free. Pro adds editing, OCR and signature styles for one payment.

How Better PDF signs with a keychain certificate, smart card or USB token, what it writes into the file, and how signature styles set the way a signature looks.

E-ink monitors make long PDFs easier on the eyes, but most Mac apps are drawn for glossy screens. Better PDF's E-ink mode is pure black on white, with no motion and whole-page turns.