Merge PDF

No. Reading, previewing and merging happen in your browser. File contents and filenames are not sent to Toolkitta. Keep this tab open until you download the result; reloading clears the session. Website hosting and performance measurement are described in our Privacy notice.

Pages are copied directly into the new PDF. Text, vector drawings and images remain page content; pages are not converted into screenshots. Existing selectable text stays selectable, while a scan without a text layer remains a scan. Page sizes and rotation are retained, including documents with a mix of portrait and landscape pages.

Add two to twenty files — PDFs up to 50 MB each and 200 MB combined, or photos up to 20 MB each and 100 MB total within the combined limit. The finished document can contain up to 300 pages. Large documents can use considerable browser memory; if your device struggles, combine fewer files at a time. The merged file is not compressed unless you add Compress, and may be larger than the inputs.

Standard PDF forms are accepted. Filled text, checkboxes and other field appearances are flattened into the pages, so values remain visible but fields cannot be edited in the merged PDF. Fill and save your form before adding it. The original file is unchanged. Encrypted PDFs, XFA forms and signature fields remain unsupported; export an unencrypted, flattened copy in your PDF application first. Keep digitally signed originals separately: a new merged document does not retain their signature validity. Unsupported files remain in the queue with an explanation and must be removed or replaced before merging.

The tool copies pages, not the whole document structure. Document-level bookmarks, attachments and settings are not carried over. Page annotations and embedded content can remain. Links that refer to other pages may need to be recreated, so merging is not an attachment-removal, metadata-removal or sanitization tool. Review the result before distributing it.

Yes, in the same save. Add Page numbers from the Also row (four formats, six positions, and a page to start on), a centred text Watermark, or Compress for Light, Balanced, Strong or a target size. The text is added before compression, which re-encodes only pictures inside the PDF.

When printing double-sided, a document with an odd number of pages makes the next document start on the back of a sheet. Tick Start each file on a new sheet and the merger inserts an empty page, the same size and orientation as that document's last page, so every document begins on a fresh sheet. The result row says how many blank pages were added; they count towards the 300-page limit. Leave it off for on-screen reading.

Yes. In the Files view, drag a file by its handle, focus the handle and press the up or down arrow key, or sort filenames in natural order so chapter-2 comes before chapter-10. Add more with Add PDFs or by dropping files onto the workspace. Switch to the Pages view to move single pages — even between files — and to rotate or delete them; Undo and Redo track your last 40 changes. Page changes clear the previous result so your next download matches what you see. Renaming keeps the completed output.