PDF Watermark Online
PDFページ全体に視覚的なテキスト透かしを追加します。
What this Document tool does
PDFページ全体に視覚的なテキスト透かしを追加します。 It helps prepare documents for sharing, compression, conversion, extraction, merging, splitting, and repeat office workflows.
PDF Watermark helps with document work directly in the browser. Use it to convert, combine, compress, clean, split, or export document files without installing desktop software.
How to use PDF Watermark
- Open the live tool at /tools/pdf-watermark.
- Upload the PDF or source document, set page ranges or quality options when available, and wait for the server-side job to finish.
- Run PDF Watermark and check the generated result before using it in production work.
Best use cases for PDF Watermark
- Prepare documents for email, upload portals, archives, or client handoff.
- Convert pages into images or combine files into one clean PDF.
- Reduce manual document handling during repeated admin work.
Examples and checks for PDF Watermark
Example inputs
- A client report PDF
- A scanned form or contract
- A document prepared for upload or email
Common mistakes to avoid
- Uploading the wrong source format
- Ignoring page order after conversion
- Sharing the output without checking readability
Output checklist
- Open the downloaded file
- Confirm page order and page count
- Check text readability, forms, signatures, and file size
Avoid uploading documents that contain secrets, regulated data, or material you do not have permission to process.
PDF Watermark inputs
Upload the PDF or source document, set page ranges or quality options when available, and wait for the server-side job to finish.
PDF Watermark output
The result is a downloadable document, archive, page image set, or processed PDF with job status and file details.
Review before publishing
Open the result and verify page order, image quality, text readability, signatures, and form fields before sending.
Free usage limits and upgrades
The current free plan allows 20 daily runs. Pro allows 500 daily runs, and Business allows 3000 daily runs for heavier repeat work.
- PDF Watermark input workspace
- PDF Watermark result preview
- Copy or download ready output
- Free daily runs with paid upgrade limits
Compare Free, Pro, and Business plans for higher daily limits, larger uploads, longer file history, and repeat workflows.
Frequently asked questions
- Is PDF Watermark free to use?
- Yes. PDF Watermark is available on the free plan with 20 daily runs. Paid plans add higher quotas for repeat work.
- Can I watermark only one page?
- No, the text is stamped across every page in one pass. Split the pages out first if only part of the document needs the mark.
- Does the watermark stop someone copying the content?
- Not reliably - it is a visible text layer sitting on top of the page, so a PDF editor can delete or cover it. Use it to signal ownership rather than to enforce it.
- Does it hide the text underneath?
- No - the original content stays in the file and remains selectable and copyable. If information has to be removed from a document, it has to be redacted rather than covered.
- Why does the watermark sit unevenly on some pages?
- Position and rotation are calculated from the page dimensions, so a document mixing portrait and landscape pages can place the mark off centre on some of them. Check the landscape pages in the output.
Related tools
- PDF Page Numbers - Stamp page numbers onto a PDF with configurable position and start number.
- PDF Sign - Add a visual typed signature stamp to selected PDF pages.
- PDF Protect - Encrypt a PDF with a password and optional print, copy, and edit restrictions.
- PDF Merge - Queue a PDF merge job and download the merged PDF.
- PDF Split - Queue a PDF split job and download extracted pages.
- PDF Compress - Compress a PDF with screen, ebook, or print profiles.