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あるPDFを別のPDFの前面または背面に重ねます — レターヘッド、透かしページ、フォームテンプレートを全ページに適用できます。
あるPDFを別のPDFの前面または背面に重ねます — レターヘッド、透かしページ、フォームテンプレートを全ページに適用できます。
あるPDFを別のPDFの前面または背面に重ねます — レターヘッド、透かしページ、フォームテンプレートを全ページに適用できます。 Put company letterhead behind a plain contract, stamp a DRAFT or CONFIDENTIAL page over a report, or lay a filled document onto a blank form template. Load a base PDF and an overlay PDF, pick over- or under-content placement, opacity, fit or actual size, and a page range — a live preview shows exactly how base page 1 and overlay page 1 composite before you download.
When Overlay PDF (Stamp / Letterhead) Is Useful Stamp one PDF over or under another — letterhead, watermark page, or form template on every page. Put company letterhead behind a plain contract, stamp a DRAFT or CONFIDENTIAL page over a report, or lay a filled document onto a blank form template. Load a base PDF and an overlay PDF, pick over- or under-content placement, opacity, fit or actual size, and a page range — a live preview shows exactly how base page 1 and overlay page 1 composite before you download. How Overlay PDF (Stamp / Letterhead) Works Overlay PDF (Stamp / Letterhead) is designed for PDF page organization, page extraction, document conversion, PDF generation, and browser-side file preparation tasks. You upload the source file, adjust the available controls, run the workflow locally, and export a result that is easier to publish, compare, review, or reuse. When to Choose Overlay PDF (Stamp / Letterhead) Overlay PDF (Stamp / Letterhead) is useful when you need a fast result, want to review the output before downloading, and prefer to keep the file on your own device instead of uploading it to a remote service. Common Use Cases splitting large PDFs into smaller shareable files extracting, removing, reordering, or rotating pages without desktop PDF software converting working files into shareable PDF documents combining or exporting documents for clients and teams keeping private files on device during conversion Search Intent and Real-World Value People typically search for Overlay PDF (Stamp / Letterhead) online, overlay pdf (stamp / letterhead) free, browser-based overlay pdf (stamp / letterhead), and private pdf workflow. Strong pages for this workflow should explain the problem clearly, show the output style, describe where the tool fits in a real editing or analysis process, and confirm that processing stays private in the browser.
PDFオーバーレイ(スタンプ/レターヘッド) is useful when you need a fast result, want to review the output before downloading, and prefer to keep the file on your own device instead of uploading it to a remote service.
People typically search for PDFオーバーレイ(スタンプ/レターヘッド) online, overlay pdf free, browser-based overlay pdf, and private browser-based PDF workflow. Strong pages for this workflow should explain the problem clearly, show the output style, describe where the tool fits in a real editing or analysis process, and confirm that processing stays private in the browser.
Any PDF: a letterhead, a one-page watermark or DRAFT stamp, a certificate frame, or a form template. The overlay is embedded as vectors, so its text and graphics stay sharp — nothing is rasterized.
Over draws the overlay on top of the base page — right for stamps and watermarks. Under places it behind the page's text, like printing on letterhead. Under mode rebuilds each stamped page, so links and form fields on those specific pages are removed; pages outside the range keep everything.
Yes. Choose Page 1 on every page to repeat the overlay's first page across the whole range, or In sequence to stamp overlay page 1 on the first selected page, page 2 on the second, and so on — stamping stops when the overlay runs out of pages.
No. Both files are processed entirely in your browser with pdf.js and pdf-lib. Neither the base nor the overlay PDF ever leaves your device.