https://thundocs.com/ daily 1.0 https://thundocs.com/merge weekly 0.9 https://thundocs.com/split weekly 0.9 https://thundocs.com/compress weekly 0.9 https://thundocs.com/pdf-editor weekly 0.9 https://thundocs.com/pdf-to-image weekly 0.9 https://thundocs.com/image-to-pdf weekly 0.9 https://thundocs.com/pdf-to-word weekly 0.9 https://thundocs.com/word-to-pdf weekly 0.9 https://thundocs.com/excel-to-pdf weekly 0.8 https://thundocs.com/powerpoint-to-pdf weekly 0.8 https://thundocs.com/protect weekly 0.8 https://thundocs.com/unlock-pdf weekly 0.8 https://thundocs.com/ai-ocr weekly 0.8 https://thundocs.com/features weekly 0.7 https://thundocs.com/pricing weekly 0.7 https://thundocs.com/security monthly 0.6 https://thundocs.com/help monthly 0.6 https://thundocs.com/blog weekly 0.7 https://thundocs.com/about monthly 0.5 https://thundocs.com/privacy yearly 0.4 https://thundocs.com/terms yearly 0.4