MRS Blog

MRS · Blog

The MRS Blog

Practical guides for your papers: scanning with an iPhone, making PDFs you can search, signing and filling forms, and honest comparisons of the popular scanner apps. Short steps, real answers.

All posts

A hand slides a blank sheet onto a small stack of white paper next to an iPhone with a dark screen on a light desk
PDF editing on iPhone· 9 min read

How to add a page to a PDF on iPhone: blank, photo or scan

A form arrives with a page missing, or a contract needs one more page for signatures. How to add a blank page, a photo page or a scan to a PDF on your iPhone, and how to check the result.

A closed grey document box on a shelf beside grey binders and one red binder
Going paperless· 9 min read

How to store important documents at home and on your iPhone

Birth certificates, passports, deeds and insurance papers need a safe home and a copy you can find in a minute. Here is where to keep the originals, how to keep a digital copy on your iPhone, and a yearly routine that keeps both up to date.

A white sheet with one wavy ink stroke, a fountain pen and an iPhone with a dark screen on a light desk
Signing PDFs on iPhone· 10 min read

How to scan a signature and put it on any PDF

You want your real handwritten signature on PDFs and forms without printing them. Here are the ways to scan a signature on iPhone, what each one leaves behind, and which gives the cleanest result.

An iPhone with a dark screen, a printed landscape photo on a white sheet, a grey notebook and a red pen on a light desk
PDF editing on iPhone· 10 min read

How to make a PDF on iPhone from paper, photos, notes and pages

A form to send back, a receipt, a page of notes or a web page: your iPhone can turn each of them into a PDF without a computer. Here are the six built-in ways, which one fits what you start from, and when a scanner app is the better choice.

An iPhone with a dark screen held above a printed page of faint grey bars, a thin cyan light line crossing the page as if scanning, on a light desk by a window
Text recognition (OCR)· 10 min read

What is OCR and what does it do to a scanned PDF?

OCR stands for optical character recognition. Here is what it does to a scan, how the software reads letters, how accurate it is and when you need it.

An iPhone with a dark screen lying on a stack of crisp white paper on a light desk by a window, a thin cyan light line across the top sheet
PDF editing on iPhone· 10 min read

How to print to PDF on iPhone from Safari, Mail and more

A booking page, an email receipt, a note: your iPhone can turn any of them into a PDF from the Print screen, with no printer. The steps for each app, and how to check the file.

A hand holding a pen above a signed printed contract next to an iPhone with a dark screen, on a light desk by a window
PDF editing on iPhone· 10 min read

How to edit a signed PDF on iPhone without breaking it

A missed date on a signed lease, a typo in a freelance contract. How to edit a signed PDF on iPhone when the signature is a drawing, and what to do when it is a certificate.

A short stack of printed pages, one sheet half turned over, beside an iPhone with a dark screen on a light desk
Document scanning· 10 min read

How to scan double-sided documents into one PDF, front and back in order

A lease or a tax form printed on both sides should arrive as one PDF in reading order. Here is the flip-as-you-go method on iPhone, plus what printers do.

A closed dark-red passport-style booklet and an iPhone with a dark screen on a light desk by a window
Document scanning· 11 min read

How to scan a passport on iPhone: a sharp copy of the data page

A new employer, a visa form or a rental agency wants a scanned copy of your passport and you only have an iPhone. Here is how to scan the data page flat, without glare, with both machine-readable lines readable, and how to send it safely.

An iPhone with a dark screen resting on a long printed document on a light desk by a window
Text recognition (OCR)· 10 min read

How to search a PDF on iPhone: Safari, Chrome, Books and scans

One clause in a long lease, one word in a manual. How to search a PDF on iPhone in Books, Safari and Chrome, and why a scanned PDF finds nothing until it has a text layer.

An open hardcover book with a red ribbon bookmark on a light desk by a window, an iPhone with a dark screen beside it
Document scanning· 10 min read

How to scan a book to PDF with your iPhone, page by page

Turn a textbook, workbook, recipe book or notebook into a searchable PDF on your iPhone: the setup, the page-by-page routine and the fixes for curved pages and glare.

An iPhone with a dark screen on printed contract pages next to an envelope and a red pen on a light desk
App comparisons· 11 min read

The best signature app for iPhone: which one fits your paperwork

Five ways to sign documents on an iPhone side by side: how you sign, whether you need an account, how signatures are saved, and which job each app fits.