Add Page Numbers to PDF Online Free

Upload your PDF to WhiskFile, choose a position (top/bottom, left/center/right), pick a display pattern and number format, then click Apply & Download. Your file stays in your browser — nothing is uploaded to any server.

Yes. Select the '{n} of {N}' display pattern. With prefix 'Page ' it becomes 'Page 3 of 12'. You can also use '{n} / {N}' for '3 / 12' or '— {n} —' for '— 3 —'.

Yes. Choose from 5 number formats: decimal (1, 2, 3), lowercase Roman (i, ii, iii), uppercase Roman (I, II, III), lowercase alphabetic (a, b, c), or uppercase alphabetic (A, B, C). Ideal for thesis front matter or legal documents.

Facing pages mirrors the left/right position on even pages — if you place numbers at 'Bottom Right', even pages get 'Bottom Left'. This creates book-style numbering for double-sided printing. The 'First page is cover' toggle adjusts which pages get mirrored.

Yes. Check 'Skip first page' to leave the cover without a number. Combine with a custom start number — set start to 0 so page 2 shows '1'.

A colored rectangle drawn behind the page number for readability on image-heavy or scanned pages. Choose yellow, white, black, gray, or any custom color. No other online tool offers this feature.

Yes. The opacity slider adjusts from 10% to 100% in 5% steps. At low opacity, page numbers appear as subtle watermarks that don't distract from the document content.

Yes. The prefix field adds text before the number (e.g., 'Page '), and the suffix field adds text after (e.g., ' *'). Combine with any display pattern for custom formats like 'Page 3 of 12 *'.

Yes. Set any starting number in the 'Start at' field. For example, start at 5 if your document continues from a previous section, or start at 0 to make the second page show '1' when skipping the cover.

Yes. Use the page range field: type '1-10' for a range, '2,4,6' for specific pages, 'odd' or 'even' for alternating pages. Leave empty to number all pages.

No. All processing happens 100% in your browser using pdf-lib. Your file never leaves your device. No account, no signup, no cloud storage — the most private option compared to iLovePDF, Sejda, PDF24, or Smallpdf which all upload your files.

Yes. Add multiple PDF files and click Apply & Download. WhiskFile processes all files with the same page number settings and delivers them as a ZIP archive. No file count or size limits.

WhiskFile offers background highlight, facing pages with cover detection, 6 presets, prefix/suffix text, 4 display patterns, opacity control, and live preview on your actual PDF — all free, client-side, no limits. iLovePDF uploads your files and limits free users to 3 files. PDF24 uploads to servers and lacks prefix/suffix, Page X of Y, and facing pages.

Yes. Add Page Numbers to PDF on WhiskFile is completely free with no account required. Free users get 7 tasks per day with files up to 50 MB. There are no watermarks on any plan. Pro plans ($4.99/month) unlock unlimited tasks, 500 MB files, batch processing, and API access.

Yes. Add Page Numbers to PDF runs entirely in your browser using WebAssembly. Your files are never uploaded to any server — they stay on your device throughout the entire process. No data is transmitted, stored, or accessible to WhiskFile or any third party.

Yes. Add Page Numbers to PDF works on any device with a modern browser — iPhone, Android, iPad, tablets, Chromebooks, and desktop computers. No app download required. The interface adapts to your screen size automatically.

Add Page Numbers to PDF accepts PDF files as input and produces PDF output. The maximum file size is 50 MB on the free plan (500 MB for Pro users). There are no page count limits.