How to add page numbers to a PDF on a phone

What this workflow helps you do

A phone browser can run Add page numbers without a separate desktop program. Device memory, the mobile file picker, camera permissions, and download handling matter more on a phone, so smaller batches are easier to verify.

Choose a PDF from phone storage, configure the numbering, and save a numbered copy in the mobile browser.

Plan the task in Add page numbers

Add sequential page numbers to every page by default, or include or exclude ascending page ranges. Choose a starting value, optional prefix, plain or Page X of Y format, one of six header or footer placements, text size, colour, and opacity. Finish merging or reordering first, then check that the numbers do not cover existing text.

Number every page by default, or include or exclude ascending page ranges. Choose the first number, optional prefix, plain or Page X of Y format, header or footer placement, text size, colour, and opacity.

1. Choose where PDF page numbers appear. Place the sequence in one of six supported header or footer positions, then check the downloaded copy for overlap with existing content.
2. Choose the pages and sequence. Number all pages, only entered pages or ranges, or all pages except entered exclusions. Skipped pages do not advance the sequence.
3. Set the label and appearance. Start from another value, add an optional prefix, use a plain number or Page X of Y, and choose the size, colour, and opacity.

Complete the task reliably on a phone

The mobile file picker may show Photos, Files, Downloads, a camera option, or cloud-provider shortcuts depending on the device. Select only the sources required by Add page numbers and return to the browser while processing finishes.

Large documents and high-resolution images use device memory. If the browser reloads or becomes unresponsive, keep the originals and retry with a smaller supported batch rather than repeatedly starting the same large job.

1. Use a current browser and keep the tab active during processing.
2. Save the result to Files or Downloads.
3. Reopen the download outside the tool before sharing it.

Settings and limitations to check

Can I add page numbers to a PDF online for free? Yes. Choose the numbering settings and download a numbered copy without an account.

Can I use Roman numerals for PDF page numbers? No. The current tool writes a numeric sequence with an optional text prefix.

Can I skip the cover page? Yes. Choose All except these pages and enter 1, or include a range that starts after the cover. The remaining selected pages are numbered in PDF order.

1. Use only the settings needed for the required result.
2. Keep the source file available for comparison.
3. Do not rely on an unsupported exact-size, fidelity, or security promise.

Review the completed file

Open the result on the phone and check the first, second, and final page numbers.

Open the downloaded result in a separate viewer, inspect important pages or details, and repeat the workflow with adjusted settings if the output is not suitable.

1. Confirm the expected file type and page count.
2. Check important text, images, order, and orientation.
3. Share or submit only the reviewed copy.