The Extract PDF Pages tool creates a new PDF that contains only the pages you select from a source document, with the chosen pages appearing in the exact order you enter. To extract PDF pages on iPhone, open the tool in Safari (or any browser on iOS), choose a local PDF from the Files app, type the page numbers and ranges you want, and download the resulting file back to your device. The process runs entirely in the browser using pdf-lib, so your source file is not uploaded to a server. The tool supports unencrypted PDFs up to 50 MiB and 500 pages, uses one-based page numbers matching what PDF viewers display, and accepts comma- or whitespace-separated tokens such as 5, 1-3. The order of your tokens becomes the order of the output pages, and duplicate pages are ignored after their first occurrence so the new file never silently contains repeats.
Why a browser method works on iPhone
Most iPhone users assume they need a dedicated app to extract PDF pages, but Safari and other iOS browsers can read and write PDFs locally using JavaScript libraries. The Extract PDF Pages tool runs pdf-lib directly in the browser tab, so it works on an iPhone without installing anything from the App Store, creating an account, or sending your file to a remote server. This matters for documents you do not want to upload, such as contracts, tax forms, or medical records, and it also matters when you are working on a borrowed device or have very little free storage left on the phone. Because the file, page selection, and output all stay in the browser tab, the workflow looks the same on an iPhone as it does on a desktop, and the only adjustment is how you point Safari at the original PDF and where you save the result.
What you can do with page extraction on iPhone
Real iPhone use cases for extracting PDF pages tend to fall into a few patterns. You can pull a single page out of a long report so you can email just the table or the chart. You can build a custom PDF from several non-adjacent pages, which is useful when you want to send a couple of pages from different parts of a manual to a colleague. You can also reorder pages by listing them in a new sequence: 5, 2-3 produces a PDF with page 5 followed by pages 2 and 3, in that order. Finally, you can slim a large PDF down to only the pages you actually need to print, share, or upload, which is handy on a phone where storage and bandwidth are limited. None of these require a separate editing app, and the order control is precise because the parser treats the order of your tokens as the order of the output.
Selection syntax at a glance
The page field accepts one-based page numbers separated by commas or whitespace, and a hyphen defines an inclusive ascending range. The order of the tokens is preserved, so writing 5, 1-3 produces an output with page 5, then pages 1, 2, and 3 in that order. Descending ranges such as 5-3 are rejected rather than silently reversed, and decimals, negative numbers, malformed ranges, and pages outside the loaded document are also rejected with an explicit error. The selection field accepts at most 4,000 characters, and over-limit input is rejected outright rather than truncated or partly applied.
| You type | What comes out | Why |
|---|---|---|
| 5 | Page 5 only | Single page token |
| 5, 1-3 | 5, 1, 2, 3 | Token order is preserved |
| 1-3, 5 | 1, 2, 3, 5 | Range first, then single page |
| 3, 1-3 | 3, 1, 2 | Duplicate page 3 is ignored after first occurrence |
| 5-3 | Rejected | Descending ranges are not allowed |
| 1, 0, 600 | Rejected | Pages outside the loaded document are rejected |
How to extract PDF pages on iPhone
- Open Safari on the iPhone and navigate to the Extract PDF Pages tool.
- Tap the file picker and choose a PDF from the Files app, iCloud Drive, or another connected location. The tool reads the original bytes from your device into the browser tab.
- Type the page numbers and ranges in the field in the order you want them to appear, for example 5, 1-3. Page numbers are one-based and match what the PDF viewer shows.
- Tap the extract action. The browser validates the input, copies the selected page objects into a new PDF, and reports any duplicate pages it ignored.
- Download the result. On iPhone, save it to Files, share it via the Share Sheet, or open it in another app to verify the order and appearance before sending it on.
iPhone-specific tips for finding and saving the file
The trickiest part of working with PDFs on iPhone is usually not the extraction itself but getting the source file into Safari and the result back out. The cleanest path is to start in the Files app: locate the PDF you want to trim, long-press it, choose Share, and open it in Safari. If the file lives in Mail, Messages, or another app, tap and hold the attachment and use the system Share Sheet to open it in Safari. When the result is ready, the download flow depends on the browser: in Safari, the new file typically appears in the Downloads folder and is also offered to the Share Sheet, where you can save it to Files, iCloud Drive, On My iPhone, or send it directly to another app. If you previously opened the source PDF in a third-party reader, the result may also be opened in that same reader for a quick visual check that the order matches what you typed.
Input limits and what the tool rejects
The tool reads the source bytes in the browser and enforces two explicit limits: a file size of 50 MiB (52,428,800 bytes) and a decoded page count of 500. A file at either boundary is accepted; a larger file or document is rejected, not shortened. The parser is strict about syntax: descending ranges, decimals, negative values, malformed ranges, and pages outside the loaded document are rejected with an explicit error rather than guessed at. The selection field accepts at most 4,000 characters, and over-limit input is rejected outright instead of being silently truncated. If your iPhone has many tabs open or limited memory, very large source files may also be slow to load even when they fall within the stated limits, because the browser still has to read the bytes into memory before any page can be copied.
What does not survive extraction
The extractor copies each selected page object as a whole, including the rotation, crop box, media box, page graphics, and ordinary page resources, so the visible content of each page is preserved. It does not rasterize pages into screenshots. However, some PDF features have document-wide relationships that do not survive page extraction cleanly. Password-protected or encrypted files are not opened by bypassing encryption, and damaged or unsupported files can fail to load. Dynamic XFA forms are not a supported preservation target in pdf-lib. AcroForm fields, annotations, scripts, embedded files, layers, page labels, bookmarks, document outlines, cross-page destinations, and links may depend on objects outside the selected pages, and digital signatures will not remain valid after creating a different PDF. The tool makes no promise that every interactive, navigational, signed, or archival property survives.
When to use a different tool on iPhone
If your goal is to rearrange the pages of a PDF without building a new file from a selection, the Rearrange PDF Pages tool works in the same browser environment. If you want to remove unwanted pages from a PDF and keep the rest, the Delete PDF Pages tool produces a trimmed file. For signed documents, XFA-based forms, or PDFs that need full archival fidelity, use the original authoring software instead of a browser extractor. Before relying on the output, open it in your target viewer, confirm the selected order and page appearance, test any required links or fields, and keep the original PDF in case you need to redo the extraction with a different selection.