- Can I combine pages from different PDFs into one file?
- Yes, that is the core purpose of this tool. Load multiple PDF files, switch between them using the tabs, pick pages from each, arrange them in the tray, and download a single combined PDF. Pages from any of the loaded files can be mixed in any order you like.
- Does my PDF get uploaded to your servers?
- No. This tool runs entirely inside your web browser using JavaScript libraries (pdf-lib for building the output PDF and PDF.js for rendering the page previews). Your files never leave your device. This makes it safe to use with confidential, financial, legal, or medical documents.
- Can I use a page from the same PDF more than once?
- Yes. Click the same page thumbnail multiple times — each click adds another instance to your selection tray. This is useful when you want to repeat a cover page, a header slide, or a terms page multiple times in the output.
- How many PDFs and pages can I load?
- There is no hard limit imposed by this tool — the only constraint is your browser's available memory. In practice, dozens of PDFs with hundreds of pages total work smoothly in modern browsers. Very large files (100+ MB each) may slow thumbnail rendering, but the output PDF is generated efficiently from the source data.
- Will the output PDF keep the original quality and text?
- Yes. pdf-lib copies the full original PDF page content — including vector graphics, embedded fonts, and selectable text — into the output file. The thumbnails shown in the picker are low-resolution previews generated by PDF.js, but the downloaded file is at the original PDF resolution and quality.