How do I add a watermark to a PDF?

Open pdfedit.com/watermark-pdf in any browser, drop your PDF, the watermark modal opens automatically. Pick text or image, set message + layout + opacity + rotation, click Apply. Save the watermarked PDF. No account, no upload, no watermark on the watermark.

How do I watermark a PDF?

Same answer — drop the PDF on this page, configure the watermark in the modal, click Apply, save. Works for text watermarks (CONFIDENTIAL, DRAFT, your name) and image watermarks (logo, signature, stamp).

How do I insert a watermark in PDF?

Drop the PDF on this converter — the watermark modal opens automatically with text and image options, layout presets (single position, diagonal stamp, repeating tile), and live preview.

Is this PDF watermark tool free?

Yes. 100% free forever — no trial, no premium tier, no per-file charge, no daily quota, no watermark on the watermark output.

Do I need an account?

No. No signup, no login, no email, no captcha, no credit card.

No. The watermark is added entirely in your browser using pdf-lib. Your PDF never touches our servers. Adobe, iLovePDF, Sejda, Smallpdf, and PDF24 all upload — we don't.

Can I add an image watermark (logo)?

Yes. The modal accepts JPG and PNG images for image watermarks — useful for logos, signatures, or visual stamps. Adjust opacity to make it subtle or bold depending on the use case.

Can I add a text watermark like CONFIDENTIAL or DRAFT?

Yes. Text watermarks are the default. Type any text, choose font, size, color, and rotation. CONFIDENTIAL diagonal across every page is the most common pattern; DRAFT and INTERNAL are also one-click presets.

Can I make the watermark repeat across the page like a tile?

Yes. The layout option offers single-position (one watermark per page), diagonal (one large rotated stamp), or repeating tile (text repeated across the whole page in a grid pattern, common for confidential / proof-of-concept docs).

Can I control opacity and rotation?

Yes. Opacity is 0-100% (default 30% for the subtle confidential look). Rotation is -90° to 90° in 1° increments — diagonal stamps usually use 45°.

Will the watermark show on every page?

Yes by default — the watermark applies to every page. The modal also offers per-page-range options (e.g. 'pages 1-3 only').

Is the watermark permanent?

Yes — the watermark is baked into the PDF as a real content-stream operator (text or image). Anyone opening the file sees it; it's not just metadata. Removing it requires PDF surgery and isn't trivial. For a watermark someone shouldn't remove, combine with PDF protection (set the 'editing' permission to off).

Is there a watermark on the output (a watermark on my watermark)?

No. The output PDF carries only your watermark, not ours. iLovePDF's free tier adds an iLovePDF watermark to some tool outputs; Smallpdf gates premium features. Ours is clean every time.

Is there a file-size limit?

No artificial limit. Memory is the only ceiling — modern laptops handle hundred-MB PDFs fine.

Does it work on mobile?

Yes. iPhone Safari, iPad, Android Chrome — any modern mobile browser.

Does it work offline?

Yes once the page has loaded. The PDF Edit engine is cached in your browser.

What is the best free PDF watermark tool?

For privacy-first watermarking with no upload, no signup, and no watermark-on-watermark, we believe pdfedit.com is the best free option. For desktop / batch automation, Adobe Acrobat is the gold standard but costs $19.99/month.

Ntxiv Tus Dej Cim Rau PDF — Pub Dawb, Hauv Koj Tus Browser

Dej cim ntawv los yog duab, ib qho chaw nkaus xwb / diagonal / rov ua dua tile. Tsis muaj upload, tsis muaj kev sau npe, tsis muaj dej cim ntawm koj tus dej cim.

Tso ib daim PDF — lub dej cim modal qhib automatically nrog kev txhawb ntawv thiab duab tag nrho. Xaiv layout (ib lub stamp ib nplooj, diagonal, lossis tus qauv tile rov ua dua), teeb tsa opacity, kev tig, font, thiab xim, saib live preview, tom qab ntawd siv thiab khaws cia. Tib lub cav uas PDF Edit editor siv; txhua yam khiav hauv koj tus browser. Cov qauv ib txwm ib nias yuav tau: CONFIDENTIAL, DRAFT, INTERNAL, koj lub tuam txhab logo.

100% Dawb Mus Ib Txhis Tsis Tas Yuav Nkag 100% Ntawm Koj Lub Cuab Yeej Kev Nyab Xeeb Siab

Cov ntaub ntawv yeej tsis tawm hauv koj lub cuab yeej

AES-256 encryption

Peb saib tsis tau koj cov ntaub ntawv

Tsis tas yuav muaj kev sib txuas

Tso koj PDF rau ntawm no

los yog

Tsis tas yuav upload. Lub dej cim modal qhib thaum koj PDF thauj tiav.

Yuav Ntxiv Tus Dej Cim Rau PDF Li Cas — Cov Kauj Ruam

Tso koj PDF

Drag any PDF onto the dropzone above, or click Xaiv PDF to browse. Daim ntaub ntawv thauj rau hauv koj tus browser memory nkaus xwb — tsis muaj server upload.
Xaiv ntawv lossis dej cim duab

Cov dej cim ntawv yog qhov teeb tsa — sau CONFIDENTIAL, DRAFT, INTERNAL, koj lub npe, lossis tej yam ntxiv. Rau cov dej cim duab (tuam txhab logo, kos npe, stamp) hloov mus rau image mode thiab upload ib daim JPG lossis PNG.
Xaiv layout + opacity + kev tig

Peb cov layout presets: ib qho chaw nkaus xwb (ib tus dej cim ib nplooj, anchored rau ib lub kaum los yog hauv plawv), diagonal (ib lub stamp loj tig thoob plaws nplooj ntawv), lossis rov ua dua tile (tus dej cim rov ua dua thoob plaws nplooj ntawv hauv ib daim grid). Hloov opacity 0-100%, kev tig -90° txog 90°.
Saib + siv + khaws cia

Lub modal qhia tus live preview thaum koj hloov chaw teeb tsa. Nyem Siv los bake tus dej cim rau txhua nplooj ntawv (lossis ib tus nplooj ntawv tshwj xeeb), tom qab ntawd Khaws Cia los rub PDF dej cim tawm. Tsis muaj upload, tsis muaj dej cim ntawm tus dej cim.

Watermark PDF vs Adobe, iLovePDF, Sejda, Smallpdf, PDF24

Feature	PDF Edit	Adobe Acrobat	iLovePDF	Sejda	Smallpdf	PDF24
PDF xa mus rau ib lub server?	Tsis yog — 100% local	Yog (cloud) / Tsis yog (desktop)	Yog	Yog	Yog	Yog
Yuav tsum muaj account?	Tsis tau	Yog	Theem pub dawb txwv	Theem pub dawb txwv (3 haujlwm/teev)	Theem pub dawb txwv	Theem pub dawb txwv
Tus nqi	Pub dawb mus ib txhis	$19.99/lub hli	Pub dawb + them nyiaj	Pub dawb + them nyiaj	Pub dawb + them nyiaj	Pub dawb + them nyiaj
Dej cim ntawv?	Yog	Yog	Yog	Yog	Yog	Yog
Dej cim duab?	Yog	Yog	Yog	Yog	Yog	Yog
Tus qauv tile rov ua dua?	Yog	Yog (them nyiaj)	Tsis yog	Yog	Tsis yog	Yog
Dej cim ntawm tus output pub dawb?	Tsis yog	Tsis yog	Qee cov tools yog	Tsis yog	Qee cov tools yog	Tsis yog
Ua haujlwm offline tom qab thauj?	Yog	Desktop yog / web tsis yog	Tsis yog	Tsis yog	Tsis yog	Tsis yog

Rau ib qho dej cim uas koj yuav ntxiv ib zaug thiab tsis xav txog dua, cov tools cloud ua haujlwm tau. Rau kev sau dej cim rau cov daim ntawv cog lus, cov drafts, lossis tej yam koj tsis xav muab plho rau hauv kev sib tham, local-only yog cov lus teb ncaj.

Cov Kev Siv Dej Cim Ib Txwm

CONFIDENTIAL stamp

Diagonal ntawv ntawm 45° hla txhua nplooj ntawv, 30% opacity, qhov loj. Tus qauv ib txwm rau cov ntaub ntawv kev cai lij choj, HR, thiab nyiaj txiag uas tsis tas yuav tawm ntawm lub tuam txhab.

DRAFT cim

Tus qauv tile rov ua dua nyob hauv xim grey nyias, opacity tsawg. Qhia “tsis kawg” yam tsis kaw cov ntsiab lus rau kev tshuaj xyuas.

Tuam txhab logo

Dej cim duab, anchored rau ib lub kaum, 60-80% opacity. Cim txhua nplooj ntawv ntawm cov daim ntawv cog lus, cov kev thov, thiab cov kev xa mus sab nraud yam tsis ua kom xav txog cov ntsiab lus.

Tus sau / copyright

Dej cim ntawv nrog koj lub npe + xyoo, anchored rau hauv qab-hauv plawv. Ib txwm rau cov haujlwm tseem ceeb sib koom ua PDF (sheet music, photography portfolios, technical manuals).

SAMPLE / DEMO

Tus qauv tile rov ua dua nyob hauv liab lossis kab xim av, 40% opacity. Rau cov tshooj sample, cov ntaub ntawv demo, thiab “evaluation copy” kev faib.

RECEIVED / APPROVED

Ib lub stamp ib qho chaw rau hauv ib lub kaum, opacity puv. Lub digital sib npaug ntawm lub stamp ua haujlwm rau kev tswj cov ntaub ntawv tuaj.

Cov Lus Nug Nquag Nug

Kuv yuav ntxiv tus dej cim rau PDF li cas?

Tso PDF rau saum nplooj ntawd. Lub dej cim modal qhib automatically nrog ntawv + duab cov kev xaiv, layout presets, thiab live preview. Configure, siv, khaws cia.

Kuv yuav dej cim ib daim PDF li cas?

Tib cov lus teb — tso PDF, lub dej cim tool qhib automatically, configure, siv, khaws cia.

Kuv yuav ntxiv ib tus dej cim rau hauv PDF li cas?

Tso PDF rau ntawm no. Lub modal uas qhib yog tib lub uas peb tus editor siv rau in-app dej cim — ntawv lossis duab, layout presets, opacity, kev tig.

Lub dej cim tool no puas pub dawb?

Yog, 100% pub dawb mus ib txhis. Tsis muaj sim, tsis muaj theem premium, tsis muaj nqi ib daim ntaub ntawv, tsis muaj kev txwv hnub.

Kuv daim PDF puas raug upload?

Tsis yog. Tus dej cim raug ntxiv tag nrho hauv koj tus browser. Adobe, iLovePDF, Sejda, Smallpdf, PDF24 tag nrho upload — peb tsis ua.

Kuv puas tuaj yeem ntxiv tus dej cim duab?

Yog. JPG thiab PNG cov duab raug txhawb rau cov dej cim duab (logos, kos npe, stamps).

Kuv puas tuaj yeem ntxiv tus dej cim ntawv li CONFIDENTIAL lossis DRAFT?

Yog — cov dej cim ntawv yog qhov teeb tsa. Sau cov ntawv, xaiv font, qhov ntau, xim, opacity, kev tig.

Tus dej cim puas tuaj yeem rov ua dua thoob nplooj ntawv?

Yog — cov kev xaiv layout muab ib qhov chaw nkaus xwb, diagonal stamp, lossis rov ua dua tile (ntawv rov ua dua thoob plaws nplooj ntawv hauv ib daim grid).

Tus dej cim puas yuav nyob rau txhua nplooj?

Yog raws li qhov teeb tsa. Lub modal kuj muab cov kev xaiv per-page-range (xws li nplooj 1-3 nkaus xwb).

Tus dej cim puas yog ruaj khov?

Yog — tus dej cim raug muab baked rau hauv PDF ua cov tswj kev khiav hauj lwm tiag tiag. Yuav tshem nws yuav tsum muaj PDF surgery.

Tus output puas muaj dej cim ntawm tus dej cim?

Tsis yog. iLovePDF thiab Smallpdf ntxiv lawv lub branding rau qee qhov outputs theem pub dawb; peb tsis tau ua li ntawd.

Puas muaj kev txwv loj-loj ntaub ntawv?

Tsis muaj kev txwv ua tsis tiav.

Nws puas ua haujlwm ntawm mobile?

Yog — iPhone Safari, iPad, Android Chrome.

Nws puas ua haujlwm offline?

Yog ib zaug thaum nplooj ntawv tau thauj tiav.

Lub PDF dej cim tool zoo tshaj yog dab tsi?

Rau kev ua dej cim uas tsis tso npe thiab tsis muaj dej cim-on-dej cim, peb ntseeg tias pdfedit.com yog qhov pub dawb zoo tshaj plaws. Rau desktop / batch haujlwm, Adobe Acrobat yog tus qauv kub tab sis raug nqi $19.99/lub hli.

Hais txog tool no: Lub cav dej cim ntawm no yog tib yam dej cim feature uas peb lub editor xa tuaj — tso koj PDF, lub editor qhib nrog dej cim modal twb pre-activated lawm. Ib qho chaw tseeb, tsis muaj cov code dej cim ntau dua, txhua qhov kev txhim kho rau editor's dej cim tool tau xa mus rau qhov chaw no automatically. PDF tsis tau tawm ntawm koj lub cuab yeej — peb siv pdf-lib los sau dej cim rau hauv cov ntsiab lus stream ntawm cov ntaub ntawv tag nrho hauv koj tus browser.

Last updated: 2026-05-13