PDF Page Marking Planner
Add page numbers and watermarks to selected PDF pages in your browser, with range parsing, placement checks, tiled stamps, and PDF download.{{ summaryTitle }}
| Field | Value | Copy |
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| {{ row.field }} | {{ row.value }} |
| Setting | Value | Copy |
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| {{ row.field }} | {{ row.value }} |
| PDF page | Number mark | Number position | Watermark | Watermark stamps | Rotation | Page box | Copy |
|---|---|---|---|---|---|---|---|
| {{ row.page }} | {{ row.numberText }} | {{ row.numberPosition }} | {{ row.watermarkText }} | {{ row.watermarkStamps }} | {{ row.watermarkRotation }} | {{ row.pageBox }} | |
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No page placement yet
Load a PDF to preview selected pages, labels, watermark stamp counts, and page boxes.
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Introduction
Visible PDF marks solve a different problem from file names, folder notes, or viewer page labels. A printed packet, board agenda, proof copy, discovery exhibit, lesson handout, or draft report often needs words or numbers directly on the page so the mark travels with the document. Page numbers help people cite and reassemble pages, while watermarks make status labels such as confidential, draft, or approved visible during review.
Those marks become part of the PDF page content. They do not behave like a temporary sticky note, and they do not make a private document secure by themselves. A watermark can discourage casual misuse or prevent a draft from being mistaken for a final copy, but it is not encryption, access control, or redaction. A page number can make a packet easier to discuss, but it can still differ from the logical page number shown by a PDF viewer.
Good marking starts with page selection. Covers, title pages, appendices, and front matter often need different treatment from the main body. A legal exhibit might skip the cover, a classroom packet might number every page, and a proof might stamp only odd pages. The decision should be made before placement and style are tuned, because the selected-page count affects labels such as Page 1 of 8.
Placement is geometry, not document reflow. PDF page content does not automatically move aside for a footer or watermark. The page box, margins, text width, font size, opacity, rotation, and whether facing pages should mirror left and right positions all affect the visible result. Busy scans and mixed page sizes need extra inspection because a valid coordinate can still land over important content.
The safest marking workflow is to choose the page range, decide which visible marks are necessary, preview the placement plan, create the output, and open the downloaded PDF before sharing it. That final check catches the domain problems no range parser can know: existing footer text, rotated pages, tight margins, and marks that are technically present but too faint or too intrusive.
How to Use This Tool:
Use the tool for one PDF at a time. The PDF is read locally, and the marked download appears after the browser writes the selected visible marks.
- Choose or drop a source PDF. Files are capped at 75 MB, and processing is capped at 500 pages for browser memory safety.
- Select Marks to add: page numbers, watermark, or both. Use both when a document needs a footer-style sequence and a visible status label.
- Set Pages to mark. Supported range language includes
all,all except cover,odd,even,first,last, exact page numbers, closed ranges, open ranges, and exclusion tokens. - For page numbers, choose the format, number style, start number, and position. The format must include
{n}; optional tokens include{total},{page}, and{docTotal}. - For watermarks, enter the text, position, font size, rotation, opacity, color, and whether the mark should repeat in a tiled grid.
- Open Advanced for number size, margins, colors, facing-page mirroring, watermark font, single-mark offsets, tile spacing, and output filename.
- Run the marking action, then review Marked PDF, Mark Setup, and Page Placement. Export CSV, DOCX, or JSON only after the placement rows match the pages you intended to mark.
Interpreting Results:
Marked PDF reports the generated output file, source page count, selected pages, mark mode, output size, and local processing path. The downloaded PDF is the only proof that marks were written, but the placement table is the faster way to catch range and coordinate mistakes before sending the file.
| Result cue | What to verify | Why it matters |
|---|---|---|
| Selected page count | The range selected the intended pages and skipped the intended pages. | The visible total in {total} follows selected pages, not the whole document. |
| Number mark | The resolved label text uses the right number style, start number, and tokens. | Original PDF page numbers and stamped running numbers can differ. |
| Number position | The footer or header anchor is correct, especially when facing-page mirroring is on. | Outside page numbers should alternate sides in booklet-style layouts. |
| Watermark stamps | A single mark or tiled grid was applied as expected. | Tiled mode ignores the single-position selector and can add many repeated stamps. |
| Page box | Mixed page sizes and rotated source pages have been inspected in the final PDF. | PDF points describe geometry, not whether the mark looks good on the page content. |
Warnings are part of the result. A missing {n} token blocks numbering, blank watermark text blocks watermark output, and an empty range means no page can be marked. If the source has rotated pages, inspect the download manually because visual orientation can be different from the page box used for placement.
Technical Details:
PDF page marking is a content drawing operation. The browser opens the selected PDF, embeds a standard PDF font, converts selected colors into PDF color values, resolves each selected page number, and draws text at calculated coordinates. Existing page content is not reflowed, and the action does not create PDF page labels in the viewer navigation layer.
The page range parser uses one-based page numbers because that is how people refer to PDFs. The placement math uses PDF points and each page's own width and height. Long labels shift centered and right-aligned positions because text width is part of the coordinate calculation. Lower opacity makes a watermark less intrusive, but it can also make the mark hard to read on a scan or shaded background.
Rule Core:
| Rule | Behavior | Boundary |
|---|---|---|
| Range selection | all, cover, first, last, odd, even, exact pages, and ranges become a sorted page set. |
Out-of-range or invalid tokens create warnings and are ignored or clipped. |
| Exclusion | all except ... removes named pages or ranges from the full document set. |
all except cover starts marking at page 2 when the PDF has a cover. |
| Number style | Arabic, padded Arabic, uppercase or lowercase Roman numerals, and uppercase or lowercase letters are generated from the running label number. | The first selected page receives the configured start number. |
| Watermark opacity | The visible percentage is converted to a decimal alpha value. | The control accepts 5% to 100%. |
| Tiled watermark | Anchor points are repeated across the page at the selected spacing. | Each page is capped at 360 tile stamps. |
Formula Core:
Number labels and placement are deterministic. The selected-page index controls the label number; page dimensions, margins, and text width control where the mark lands.
In these formulas, s is the start number, i is the zero-based selected-page index, W and H are the page width and height, Tw is measured text width, f is font size, and mx and my are margins. Left placement uses the horizontal margin directly. Center and right placement depend on text width, so a longer label can move the x coordinate.
| Input | Accepted range | Effect |
|---|---|---|
| Number font size | 8 to 24 pt | Changes label height and placement clamping. |
| Number margins | 12 to 144 pt | Controls header and footer distance from page edges. |
| Watermark font size | 12 to 120 pt | Changes mark prominence and measured width. |
| Watermark rotation | -90 to 90 degrees | Controls diagonal or horizontal stamp angle. |
| Tile gap | 120 to 480 pt | Controls spacing between repeated watermark anchors. |
Privacy Notes:
The selected PDF is read and rewritten in the browser. The marking action does not upload the source PDF, and exported tables or JSON are generated from local state. The page may still need network access before the browser can create the marked PDF, so do not assume it works offline. Treat the downloaded PDF as a new document copy and review it under the same confidentiality rules as the source.
Worked Examples:
Confidential packet: A 24-page board PDF uses all except cover, page numbers at bottom right, and a centered CONFIDENTIAL watermark at low opacity. The placement table should show 23 marked pages and page 1 omitted.
Appendix numbering: A report appendix starts on source page 8 and needs labels beginning at 101. Use range 8-, start number 101, and a format such as A-{n}. The stamped sequence follows selected pages rather than original page numbers.
Tiled draft proof: A draft proof uses watermark-only mode, tiled grid on, a diagonal rotation, and a wider tile gap. The placement rows show the stamp count per selected page, but the PDF should still be opened to confirm the mark does not obscure body text.
FAQ:
Does this set PDF page labels?
No. It draws visible text onto selected pages. Viewer page labels are a separate PDF navigation feature and can differ from visible stamped numbers.
Can a watermark protect a confidential file?
No. A watermark is a visible status mark, not encryption or permission control. Use proper document security for access restrictions.
Why is the marking button disabled?
Common causes are no loaded PDF, more than 500 pages, no selected pages, a number format without {n}, blank watermark text, or a mode that has no visible mark enabled.
Will the new marks move existing PDF content?
No. The marks are drawn on the page at calculated coordinates. Existing text, images, and scans do not reflow around them.
Glossary:
- Visible page number
- Text drawn onto the PDF page itself, usually in a header or footer position.
- PDF page label
- A viewer navigation label that may not be printed or visible on the page content.
- PDF point
- The coordinate unit used for page placement. One inch is commonly represented as 72 points.
- Facing-page mirror
- A placement option that sends odd pages to the right side and even pages to the left side for outside numbering.
- Tiled watermark
- A repeated watermark grid rather than one single watermark anchor.
References:
- Add headers and footers to PDFs, Adobe Acrobat.
- Add watermarks to PDFs, Adobe Acrobat.
- Adobe Acrobat 8 Professional User Guide, Adobe.
- PDF (Portable Document Format) Family, Library of Congress.