常见问题 (FAQ)

Are my PDF files safe?
Absolutely. All processing, thumbnail extraction, page reordering, and PDF generation happen locally inside your web browser (client-side). We do not upload, store, or transmit any of your files to our servers.
Can I merge pages from multiple different files?
Yes, absolutely! You can upload as many PDF files as you need. The tool automatically assigns a unique color code to each file so you can distinguish them. You can then freely drag and drop pages from different files to mix and match them.
How do I rotate or delete a specific page?
When you hover your mouse over any page thumbnail, two action buttons will appear in the top-right corner. The circular arrow icon rotates the page by 90 degrees, and the trash can icon completely removes that page from the final PDF.