Add Watermark to PDF Free — Text or Logo Stamp Online
Need to watermark PDF pages before sharing a draft, proposal, catalogue, contract, or proof? Use PDFKing to add a custom text watermark or logo stamp online with adjustable opacity, rotation, placement, and page selection.
Start with the free watermark PDF tool and create a clean, professional PDF stamp directly in your web browser.
Drag & drop a PDF here
or click to browse · No file size limit
Key Features for Fast PDF Watermarking
Text watermarks for status labels
Add custom text such as DRAFT, CONFIDENTIAL, INTERNAL USE ONLY, COPY, or your business name. Adjust the font size, color, opacity, and rotation so the mark is visible without overpowering the content.
Logo and image stamps
Use a logo as a watermark to protect brand assets, mark product sheets, or identify client proofs. PDFKing lists PNG, JPG, and SVG as supported image watermark formats, making it suitable for simple logo overlays and transparent brand marks.
Live preview before applying
See how your watermark looks on the actual PDF page before you finish. This helps you avoid marks that are too dark, too small, tilted incorrectly, or placed over important content.
Flexible placement controls
Position your watermark using a nine-point grid, from top-left to bottom-right. Use center placement for large draft marks, corner placement for stamps, and edge placement for logos or document IDs.
Page selection options
Apply a watermark to every page, a page range such as 1–5, or a custom list such as 1, 3, 7–10. This is useful when you only need to add stamp to PDF cover pages, signature pages, invoices, or appendices.
Free, browser-based workflow
PDFKing is designed for online use in a web browser. There is no desktop app to install, no license key to manage, and no setup process. Open the tool, watermark PDF online, and continue with your document workflow.
Mark Documents Clearly Before You Share Them
A watermark helps readers understand a document’s status at a glance. You can label a file as DRAFT, CONFIDENTIAL, APPROVED, PAID, SAMPLE, or add your company logo so every page carries your brand. If you are searching for how to insert watermark in PDF files without installing software, PDFKing gives you a simple browser-based workflow for text and image marks.
The tool is built for quick document preparation. Upload your PDF, choose text or logo, preview the result, select pages, and download the finished file. PDFKing publicly states that its watermark tool supports text watermarks, image and logo watermarks, live preview, nine-point placement, page selection, and free use with no sign-up.
Common Ways to Use a PDF Watermark
Watermarking is useful whenever a document should be identified, branded, or clearly marked before it leaves your hands.
Draft proposals
Add a large diagonal DRAFT mark before sending an unfinished version to clients or teammates.
Confidential reports
Use CONFIDENTIAL or INTERNAL ONLY to remind readers that the file should not be forwarded casually.
Client proofs
Add a studio name, designer name, or project code to mockups, photography proofs, and review files.
Invoices and receipts
Add PAID, RECEIVED, APPROVED, or VOID as a clear document stamp.
Product catalogues
Overlay a logo or company name before sharing catalogues with resellers or partners.
Academic submissions
Add a student name, course code, or submission ID to assignment PDFs.
Legal and contract review
Mark review copies as DRAFT or REVIEW COPY so they are not mistaken for final signed documents.
Training materials
Add department names, version labels, or internal-use notices to handouts and manuals.
How to Add a Watermark or Stamp to a PDF
Follow these steps if you are wondering how to add stamp in PDF files or how to add watermark to PDF pages online.
- 1
Open the tool
Go to the PDFKing watermark PDF tool in your browser.
- 2
Upload your PDF
Select the PDF you want to mark. The page preview helps you check the layout before applying changes.
- 3
Choose text or image
Select a text watermark for words like DRAFT or CONFIDENTIAL, or choose an image watermark to add a logo.
- 4
Customize the appearance
Set the size, color, opacity, rotation, and placement. For a classic draft watermark, use large light-gray text, low opacity, and a diagonal angle.
- 5
Pick the pages
Apply the mark to all pages, a range, or a custom list. Use selective pages when only one section needs a stamp.
- 6
Download the finished PDF
Save your watermarked PDF and share it as needed. If the file is large, you can reduce it afterward with Compress PDF.
How PDFKing Watermark PDF Compares
How this free tool to watermark PDF documents compares with the most popular alternatives:
| Feature | RecommendedPDFKing | iLovePDF | Smallpdf | Adobe Acrobat Online |
|---|---|---|---|---|
| Free to use | Yes, unlimited | Free tier | Free tier | Needs Acrobat Pro |
| Signup to download | No | No | No | Yes |
| Text and image watermarks | Both, free | Both | Both | Both |
| Live preview before applying | Yes | No | No | Limited |
| Position control | 9-point grid | Preset | Preset | Preset |
| Custom page range or list | Yes | Yes | Limited on free | Yes |
| Daily file limit | None | Limited on free | Limited on free | Limited on free |
Benefits of Adding a Watermark to Your PDF
A PDF watermark is simple, but it solves several practical document problems.
- Clarify document status: Mark unfinished drafts, internal copies, approved versions, and paid invoices.
- Strengthen brand presence: Add a logo or company name to sales materials and client-facing documents.
- Discourage casual reuse: A visible watermark makes copying, reposting, or misrepresenting a file less attractive.
- Improve review workflows: Reviewers can immediately tell whether a document is final, draft, confidential, or approved.
- Keep pages consistent: Apply the same mark across every page or only the pages you choose.
- Save time: Create the watermark online without opening a heavy PDF editing suite.
For stronger file access control, pair watermarking with Protect PDF. To permanently hide sensitive information, use Redact PDF before sharing.
Supported File Types
PDFKing focuses on PDF watermarking. Upload a PDF document, then choose either a text watermark or an image watermark.
Supported watermark image formats include:
- PNG
- JPG
- SVG
For best logo results, use a transparent PNG or SVG when available. If your document starts as a Word file, convert it first with Word to PDF, then return to the watermark tool. If you need to combine several marked files, use Merge PDF. If you only need selected pages afterward, try Split PDF.
Why Choose PDFKing?
PDFKing is made for people who need a fast, focused way to add watermark to PDF files without extra steps. It combines the controls most users need with a clean browser-based workflow.
Choose PDFKing when you want:
- Text and logo watermark options in one tool
- A live preview before applying the mark
- Page range and custom page list support
- No desktop software installation
- No required sign-up
- No added PDFKing branding on your output file
- Helpful follow-up tools for compression, protection, redaction, splitting, and merging
The result is a practical tool for freelancers, students, small businesses, operations teams, legal reviewers, marketers, and anyone who needs to watermark PDF online quickly.
Browser-Based Only, No Installation Needed
PDFKing’s watermark tool runs in your web browser. That means you can use it on common devices and operating systems without downloading a desktop app. Open the tool, add a text mark or logo stamp, adjust the result, and download your finished document.
Frequently Asked Questions
Open the watermark tool, upload your PDF, choose text or image, adjust the appearance and placement, select pages, and download the finished file.
Use a browser-based PDF watermark tool. Add your text or logo, preview the placement, apply it to the desired pages, and save the updated PDF.
Choose a text watermark, type DRAFT, set a large size, lower the opacity, rotate it diagonally, place it in the center, and apply it to all pages.
Use a text watermark as a stamp. Enter words such as APPROVED, PAID, or RECEIVED, use higher opacity, and place it in a corner or near the relevant section.
Yes. PDFKing supports image watermarks, including PNG, JPG, and SVG formats.
Yes. You can apply the watermark to all pages, a page range, or a custom page list.
No. A watermark is a visible label or brand mark. Password protection controls access to the PDF.
No. A watermark does not remove or cover sensitive content reliably. Use redaction for information that must be permanently hidden.
This tool is for adding watermarks. If you need an unmarked version, use your original PDF and create a new copy.
Yes. Because the tool is browser-based, it can be used from modern mobile and desktop browsers.
Fast Processing
Process your files in seconds.
100% Free
No hidden fees or charges.
Secure & Private
Your data is always protected.
Works Everywhere
Any device, any browser.
Related PDF Tools
Continue your document workflow with these PDFKing tools:
Protect PDF
Add password protection to your PDF files.
Compress PDF
Shrink file size while keeping text and images sharp.
Merge PDF
Combine multiple PDFs into one document in the order you choose.
Split PDF
Separate a PDF into individual pages you can save one by one.
Redact PDF
Permanently remove sensitive content before sharing.
Word to PDF
Create polished, shareable PDFs from Word documents.
PDF to Word
Turn PDFs into editable DOCX files with a PDF to Word converter free of charge.
Add Your PDF Watermark Now
Ready to mark your document? Open the free PDF watermark tool, add your text or logo stamp, preview the result, and download a clean watermarked PDF in minutes.