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

The lease came back with a note: "Please add a page for the second tenant's signature." Or the school form has four pages and the scan you sent has three, because page 3 stayed on the printer. You need to know how to add a page to a PDF on iPhone, without hunting for a computer, and send the file back today.

Why adding a page to a PDF matters

Adding a page to a PDF keeps one document in one file. The person who asked for it gets every page in order, with the right number of pages, instead of a second attachment that may get lost in a mail thread.

A PDF is built to look the same everywhere. Wikipedia's PDF article describes it as a format Adobe developed in 1993 to present documents independent of the app, the hardware and the operating system. That is why a page you add on your iPhone shows up the same way on a landlord's laptop or a school office printer.

The two kinds of page: blank vs content

A blank page is empty space you fill on the phone. Typical jobs: a page of notes at the end of a report, an addendum with new terms, or an extra signature page for a second signer.

A content page already carries something from paper or a camera. Typical jobs: the missing page of a form, a photo of a receipt that belongs with an expense report, or a handwritten note that goes with a printed letter. The two kinds use different commands, so decide first which one you need.

How to add a page to a PDF on iPhone, step by step

Adding a page in MRS takes five to seven taps, and MRS saves the new page into the PDF at once. These steps cover both kinds of page.

1. Get the PDF into MRS. In Mail or Safari, open the PDF, tap the Share button, then Save to Files. In MRS, tap Import file and pick it; MRS does not appear in the Open in list of other apps, so the file goes through Files first.
2. Open the PDF in the editor. Tap the document in your library. Opening saved documents is free for the first 5 opens; after that it is part of MRS Premium.
3. Add a blank page. Tap the more menu (the three dots) and choose Add Empty Page. MRS adds a white US Letter page, 8.5 × 11 in, after the last page of the PDF.
4. Fill the blank page. Use the Text tool to type headings or terms, with 7 fonts, sizes 12 to 48 and 9 colors. Draw with a finger, place one of your saved signatures, or place an image such as a logo.
5. Or add a photo as a page. If the missing sheet is on paper, take a photo of it with the Camera app first. In MRS, go to the page that should come before it, tap the more menu, choose Add Image Page and pick the photo; MRS inserts it right after the page you are viewing.
6. Let text recognition finish. MRS reads the words on the new photo page on the iPhone, so the library search can find the document by any word on that page.
7. Leave the editor. MRS saves the PDF when you close the editor, and the page count in the library updates. To send the file, tap Share; sharing is part of MRS Premium, and prices are shown in the app.

The part people get wrong: where the new page lands

The two commands put the page in different places. Add Empty Page always adds the page after the last page; Add Image Page adds the photo after the page on the screen, and the editor then jumps to the new page.

So for a missing page 3 of a form, open page 2 before you tap Add Image Page. If you were on the last page, the photo ends up at the end of the file. For more than one photo, add them one at a time, each time from the page that should come before it.

MRS vs Apple's Preview vs a Mac

Three routes can add pages to a PDF from an iPhone owner's desk. Each one fits a different job.

Which one to pick

Pick by the job. For a page you will type or sign on, or for a photo of a paper page, MRS does it in a few taps and keeps the text on photo pages searchable.

For pages that come from another PDF, or a page order that needs to change, use Preview. Apple's guide to adding, deleting and moving PDF pages in Preview on iPhone shows the thumbnail menu with Insert Blank Page, Insert from File and Scan Pages, and pages move by dragging their thumbnails. On a Mac, Apple's Preview guide for adding PDF pages says the new page goes after the current page.

Tips so added pages match the rest of the PDF

A new page looks right when it matches the size, the type and the order of the pages around it. These habits keep the document clean.

• Match the font. On a typed contract, Times New Roman at size 12 sits close to most printed text. On a plain form, Helvetica fits better.
• Keep the margins. Start your text about an inch from the edge of the page, the same as most printed pages.
• Title the page. Write "Addendum 1" or "Signature page" at the top, and name the document and its date in the first line.
• Photograph flat and square. Put the missing sheet on a dark table near a window, hold the iPhone straight above it and fill the frame with the page.
• Leave space for signers. Draw one signature line and one date line for each person who signs.

A rule for page size and order

Know the size of the pages already in the PDF. The blank page in MRS is US Letter, 8.5 × 11 in; Wikipedia's Letter paper size article puts Letter at 215.9 × 279.4 mm and A4 at 210 × 297 mm, so on an A4 document a Letter page shows slightly wider and shorter.

For a signature or notes page at the end, that small difference rarely matters. For a missing page in the middle of a form, add the photo with Add Image Page from the page before it, so the order is right the first time.

How to check the PDF after you add pages

Check the file before you send it, because the other person reads it on a different screen. Run these checks on the copy you are about to share.

• Count: Does the page count match the paper original? A four-page form must show 4 pages in the library.
• Order: Does each page follow the right one? Scroll from the first page to the last and read the page numbers printed on the sheets.
• Readability: Can you read the small print on the photo page? Zoom in on a date or a phone number.
• Search: Does the library search find a word from the new photo page? Type a name or a heading from it.
• Second viewer: Does the file look the same in another app? Open the shared copy in Files or Books before you send it.

A quick test

Send the PDF to yourself first. Open the email on another device, scroll through every page once and check that each signature line is where the signer expects it.

Common mistakes and edge cases

Most problems with added pages come from the wrong place, the wrong file or a second attachment. Each one has a short fix.

• Mistake: adding the photo from the last page. The missing page 3 lands after page 4. Open the page that should come before it, then tap Add Image Page.
• Mistake: sending the new page as a separate file. The other person has to put the pages together. Add the page into the same PDF and send one file.
• Mistake: a dark or tilted photo. Text recognition reads fewer words, and the page is hard to print. Retake the photo in daylight, straight from above.
• Mistake: adding pages from a second PDF with a photo of the screen. The copy is blurry and loses its text. Use Insert from File in Preview on iPhone (iOS 26 or later) or Preview on a Mac to bring in the real pages.

Edge case: signed or form PDFs

A PDF with a drawn signature is an ordinary file, and a new page leaves the signature image as it is. A certificate-based digital signature covers the file as it was signed, so any added page shows that signature as changed; the guide on how to edit a signed PDF explains what to do then.

On a form, put your extra answers on the new page with a short line such as "Continued from page 2, question 5". MRS places text on top of the page, so type on the form pages the same way, and see how to sign a PDF on iPhone for the signature page.

Your add-a-page checklist and next steps

Run through these points before you add a page to any PDF.

• Kind: decide if you need a blank page or a page from paper or a photo.
• Place: for a photo page, open the page that comes before it first.
• Content: title the new page and leave a line and a date for each signer.
• Check: count the pages, read them in order and test the library search.
• Send: share one PDF, not a PDF plus a separate photo.

Adding pages fits in with the rest of the PDF editing basics on mobile. If the paper pages are not in a PDF yet, start with how to scan documents on iPhone or how to convert a photo to PDF on iPhone. Download MRS for iPhone with iOS 16 or later, and send questions about the app to MRS support.