Merge PDF

Select PDFs with the file picker, drag them onto the page, or paste them from the clipboard. Only PDFs are accepted, and at least two valid files are required.

Files appear in the order added. Drag a file to move it, or use Alt+←/Alt+→. Sort by name with “Name A→Z” or “Name Z→A”. Choose “Add files here (+ between cards)” to insert files at a position, or “Add more files” to append them. Remove unwanted files from their cards.

Turn on “Page mode” to work with individual pages. Drag pages to reorder them, including between files, use “Rotate left”, “Rotate right”, or “Remove page” to adjust them. “Reset pages” restores the original page order. Blank pages and the File name field are unavailable in Page mode. When the order and options are ready, choose “Merge PDF”, then “Download” to save the result.

The result is one PDF. You can keep original bookmarks, group them under one bookmark per file, or omit them. For double-sided printing, add a blank after every file or only after files with an odd page count. No blank follows the last file.

There is no fixed file-count, file-size, page, or daily limit, but device memory can constrain processing. Files over 200 MB may be slow or run out of memory on some devices. Pages retain their original size and rotation.

Password-protected, restricted, or damaged PDFs are skipped, while other valid files can still be merged. Files are processed in your browser, not uploaded, no registration is needed, and the result has no watermark or branding. Editable form fields, attachments, XMP metadata, and tagged structure are not preserved, but web links and links to a source file’s pages are kept.