Merge PDF

Browser-local

Fast action

wave 1

Combine multiple PDF files into one output in selected order.

Files

Source

No PDF selected

Size

0 B

InputsMerge PDF0 filesLive

Switch PDF actionShow

Merge Split Extract Delete Duplicate Rotate Reorder Compress Image to PDF Page numbers Text extract OCR Pro Fill & sign Editor Pro Bates Watermark Header/footer

PDF workflow rail

17 actions

Merge Split Extract Delete Duplicate Rotate Reorder Compress Image to PDF Page numbers Text extract OCR Pro Fill & sign Editor Pro Bates Watermark Header/footer

Input files

Local only

Drop PDF files here or browseMultiple files supported with browser-local processing.

No files queuedBrowser-local workflowPDF input

Output filename

Optional. Use a custom filename for the merged result before download.

Flow

Load each source PDF in the file order you selected.
Copy page objects from every source document.
Write all pages into one output PDF file.

Example

Worked example: combine monthly packs

1 Upload January.pdf, February.pdf, and March.pdf.
2 Run merge action in the selected order.
3 Download merged.pdf and confirm all sections are present.

You get one combined PDF that is easier to share and archive.

How

Upload two or more PDF files.
Reorder files if needed and set an optional output filename.
Click Merge PDF files and wait for processing.
Download merged output and verify page sequence.

Cases

Bundle signed agreements into one archive.
Combine chapter exports into a final handoff PDF.
Merge scanned pages from separate uploads.

Avoid

Uploading mixed file types instead of PDF files only.
Forgetting to verify source file order before running merge.
Leaving ambiguous output names when creating multiple merged versions.
Assuming merge removes duplicate pages automatically.

FAQ

Does merge pdf upload files to a server?

No. Merge PDF keeps the lightweight PDF workflow in your browser by default, so files are not sent to Calctrove servers for routine edits. For Merge PDF, verify your workplace policy before handling sensitive documents.

Can I process confidential documents here?

For Merge PDF, use caution on shared devices and verify your organization policy before handling sensitive files.

Why can merge pdf change output size?

For Merge PDF, output size depends on the PDF structure, embedded fonts, image compression, and the mode options selected before export.