Can it remove "CONFIDENTIAL" or "DRAFT" stamps from a PDF?

Yes, these tiled-text overlays are exactly what the model is trained on. Diagonal tile patterns clean up cleanly because the underlying document content is preserved on most pages.

Will form fields and signatures still work after cleanup?

Form fields, hyperlinks, and digital signatures are preserved. Visual signatures (handwritten ink) are kept; only the watermark layer above them is removed.

How many pages can I process?

Up to 500 pages per file, 200 MB max. Processing runs at about 1 second per page. Batch up to 5 PDFs per job.

Can I remove a watermark from a publisher preview PDF?

Only if you've purchased the document. We cooperate with publisher takedown requests and refuse jobs we suspect involve unlicensed material.

Is the PDF stored anywhere?

Auto-deleted after 1 hour. End-to-end encrypted in transit and at rest. SOC 2 Type II + GDPR.

For PDFs

ลบลายน้ำจาก
PDF, เครื่องมือ AI ฟรี

Scanned documents, contracts, forms, up to 500 pages. Searchable text preserved.

เครื่องมือลบลายน้ำ PDF ด้วย AI ฟรีนี้ลบตราประทับลับ ตราดราฟต์และตราตัวอย่าง ใบเสร็จสแกน และลายน้ำในระดับหน้าออกจาก PDF ขนาดสูงสุด 50 MB และ 500 หน้า ข้อความที่ค้นหาได้ถูกเก็บไว้ ไม่ต้องสมัครสมาชิก และไฟล์ที่อัปโหลดจะถูกลบอัตโนมัติภายในหนึ่งชั่วโมง ผลลัพธ์ยังคงเป็น PDF แบบเนทีฟที่ค้นหาได้

Drop any PDF

or ·

PDFsNative + scanned

Max 500 pages · 200MB · PDF only

3 of 3 free trials today · no signup

Auto-deleted after 1 hour·No signup needed·Max 500 pages · 200MB · PDF only

This is a file-processing tool, not a grant of rights. Use it only on content you own or are authorized to modify. You are responsible for complying with copyright, contracts, platform terms and rules, and applicable law, and must not use it to infringe rights, bypass restrictions without authorization, or misrepresent origin or ownership. Read our Terms of Service

Spring offer · 25% off yearly

Going through credits fast?

Pro gives you 200 credits/month, no output watermark, files up to 500 MB, and removes the per-format download cap.

Free credits today3 เหลือ 3 · รีเซ็ตหลังการใช้งานครั้งแรก 24 ชม.

Get Pro · $9/mo Compare plans

What you unlock

200 credits / month

No more 3-per-day cap.

25 MB · 1080p · 25 pages

Bigger files, no errors.

No output watermark

Yours look like yours.

Priority queue · ~3× faster

Skip the line.

Batch up to 50 files

One drag, fifty cleans.

Supported

PDF (text + scanned)

Max size

50 MB · 25 pages

Avg time

~1 sec per page

Batch

Up to 5 files per job

Watermarks we handle

Trained on the marks you actually see.

Our model was fine-tuned on 14 million labeled pairs covering every common PDF watermark pattern in the wild. Here are the sources it handles best:

CONFIDENTIAL stamps

Diagonal tiled red text, the most common

DRAFT / SAMPLE

Diagonal grey-tile preview marks

Publisher previews

Springer, Elsevier, Wiley sample marks

Brokerage / MLS

Real-estate firm logos on contracts

Form-builder marks

JotForm, DocuSign trial-version overlays

Custom corporate stamps

Internal "INTERNAL USE" or department logos

How it works

From upload to clean output, in three steps.

Upload

Drop your document or paste a URL. Files up to 200 MB are supported.

Detect

Our model scans every page for tile patterns, corner stamps, and watermark layers, and shows you what it found.

Rebuild

Watermark layers are removed cleanly while text remains searchable. Page by page. Download instantly.

What it's for

Built for these jobs.

Redacted scans

"CONFIDENTIAL" stamps on documents you're authorized to clean.

Preview PDFs

Publisher preview marks on books or papers you've purchased.

Real estate contracts

Brokerage watermarks on your own transaction docs.

Academic repositories

Repository watermarks on your own published papers.

Frequently asked

About the PDF remover.

Yes. For text-layer PDFs, we leave the underlying text untouched, only the visual watermark layer is modified. For scanned PDFs (image-only), we run OCR after cleanup so the output is searchable too.

More tools