ما هو علامة مائية PDF؟
PDFBasic's Watermark PDF tool adds text or image watermarks to your PDF pages. Add "CONFIDENTIAL," "DRAFT," your company logo, or custom text across every page. Customize font, size, color, opacity, rotation angle, and position to create professional-looking watermarked documents.
كيفية استخدام علامة مائية PDF
Upload your PDF, choose watermark type (text or image), customize appearance (font, size, color, opacity, angle). Preview the watermark on your pages, adjust as needed, then click "Apply." Download the watermarked PDF.
متى يجب استخدام علامة مائية PDF؟
Add watermarks when marking documents as "Draft" or "Confidential," branding documents with your company logo, deterring unauthorized redistribution, adding copyright notices, or identifying document versions.
الفوائد
حالات الاستخدام
Photography studios watermark proof prints. Law firms mark confidential client documents. Companies brand internal reports. Publishers mark review copies of manuscripts. Government agencies mark classified documents.
نصائح احترافية
- Use 30-50% opacity for a visible but non-intrusive watermark
- Diagonal text at 45° is the most common watermark style
- For logo watermarks, use PNG with transparent background
أخطاء شائعة يجب تجنبها
- Making the watermark too opaque — it obscures the content
- Using a tiny watermark that doesn't serve its purpose
- Forgetting to watermark ALL pages (use "Apply to all")
قد تحتاج أيضًا
- For maximum security, combine watermarking with password-protect the document too.
- Prevent watermark removal by flattening — flatten the PDF to make watermarks permanent.
- If the watermark increased file size, compress after watermarking.