Add Page Numbers to PDF

Welcome to the Atrium Tools PDF Page Numberer. Whether you are finalizing a university thesis, structuring a corporate report, or organizing legal briefs, unnumbered pages can lead to massive confusion when your documents are printed. This free utility allows you to instantly inject professional typography into the margins of your PDF, numbering every page automatically.

1. Customizing Your Formatting

Documents have different stylistic requirements. Our tool provides full control over how your numbers appear. Using the configuration panel, you can place the numbers in the header or footer, left-aligned, right-aligned, or perfectly centered. Furthermore, you can choose from various text structures, such as a simple "1", a formal "- 1 -", or a descriptive "Page 1 of 15" format to ensure readers know exactly how long the document is.

2. Skipping Cover Pages

If you are submitting an essay or a professional report, your document likely features a title page. In professional typesetting, cover pages should never be numbered. By selecting "Skip First Page (Cover)" from the dropdown menu, the engine will leave your title page untouched and begin counting from page 2 (labeling it "Page 1").

3. Uncompromised Client-Side Security

Uploading sensitive legal documents, unpublished manuscripts, or private financial reports to random cloud converters is a massive security risk. The Atrium Tools ecosystem solves this by utilizing secure client-side processing. When you select a PDF, it is loaded directly into your browser's local memory (RAM). The text injection happens locally, meaning your document is never uploaded to the internet or stored on our servers.

Frequently Asked Questions

Will adding page numbers reduce my PDF quality?

No. This tool does not flatten, compress, or convert your PDF into images. It cleanly overlays vector text (using standard Helvetica font) into the existing document margins, leaving your original text, hyperlinks, and image resolutions completely untouched.

Why did the tool fail to process my PDF?

The most common reason for processing failure is password protection. If your PDF is encrypted or requires a password to open, the local rendering engine cannot read or edit it. You must remove the password protection before uploading.

Are there any file size limits?

Because the tool runs entirely inside your web browser, there are no hard server limits. However, extremely large files (e.g., a 500-page textbook over 100MB) may cause your browser tab to temporarily freeze or crash depending on your computer's RAM.