Combine several Word files into one PDF

Four authors, one submission slot

Picture Dana, who coordinates a community grant application due Friday at 5 p.m. The funder's portal accepts exactly one PDF. She has four Word files from three colleagues: cover-letter.docx (2 pages), project-plan.docx (12 pages), budget-notes.docx (5 pages, with a chart) and team-bios.docx (3 pages). Each was written in a different template, and each footer starts counting at 1.

Copying everything into one document would mean reconciling three sets of styles an hour before the deadline. Turning each file into a PDF and then joining the pages avoids that fight entirely: nothing reflows, and the 22 pages come out in whatever order she picks.

Three ways from DOCX files to a single PDF

The right route depends on two questions: is the layout final, and do you have Word (or another full word processor) on the computer in front of you?

Dana's case points to the first row. The files are final, and the chart in the budget notes has to stay visible, which rules out a text-first conversion.

Step by step: Word files in, one PDF out

1. Open each document and save a PDF copy with Word's Save As or Export command, choosing PDF as the format. Google Docs with its PDF download option and LibreOffice Writer (File, Export As, Export as PDF) do the same job. With none of those available, run each DOCX through PDFGym's Word to PDF converter; it handles one document per run and names the PDF after the DOCX.
2. Give the exports names that show their position, such as 01-cover-letter.pdf and 02-project-plan.pdf, so you can set the sequence without opening each one.
3. Open Merge PDF and press Choose PDFs, or drop all the exports onto the page. It needs at least two files. They are read in the browser tab and never uploaded.
4. Arrange the list with the arrow buttons next to each file. Top to bottom is the page order of the result.
5. Press Merge PDFs. The new file is reopened and compared with the sources: the page count, each page's size and the selectable text on every page have to match, otherwise no download is offered.
6. Save the result. It is named after the first file with -merged added, so rename it to what the recipient expects, for example grant-application-riverside.pdf.

One page count instead of four

Because every part numbered itself, Dana's joined file reads 1, 2, then 1 to 12, then 1 to 5, and so on. Those digits are printed on the pages, and the merge copies pages exactly, so they arrive as they were.

Open the joined file in Stamp PDF, choose Page numbers, pick a style such as "Page 1 of 22" and place it in one of the nine positions. The number follows the physical page, so if you leave the cover out with the page selector, the first visible number is 2.

The old numbers stay where they are. Either remove the page number field from each Word footer before exporting, or put the new count in a corner the old one never used.

What the joined file keeps and what it drops

Page content travels untouched: text stays selectable and each page keeps the dimensions it had in its source. Things that sit above the pages are another matter. Bookmarks Word built from headings, interactive form fields, custom page labels, attachments and named links may not come along. Merge PDF looks at each file before joining and puts a notice beside any that carry them.

The document properties start empty, so no title or author from any part ends up in the result. A password-protected export is refused; remove its password first. Expect the size to be roughly the sum of the parts. If the portal sets a cap, Compress PDF takes a target in KB or MB.

Slip-ups that show up after you press send

Exporting a page range instead of the whole file. A leftover print range quietly drops the last page of a part. Export the full document and glance at the final page of each PDF before joining.

Mixing A4 and Letter. Colleagues in different countries often have different paper defaults, and the merge keeps each page's size, so the result changes shape halfway. Set the same paper size in each document's page setup and export again.

Tracked changes printed into the PDF. If a document is set to show markup, the export can include the coloured edits and comment balloons. Accept or reject the changes, or switch the view to show no markup, before you save the PDF.

A part in the wrong place. You do not have to start over. Move the pages in Organize pages, then stamp the running numbers last, once the order is settled.

When it is better to stay inside Word

• The text will keep changing. A thesis whose chapters are still being revised is easier to maintain as one Word document that you export at the very end.
• You need a table of contents or cross-references that span every part. Only a single document can generate those, and Word on Windows can also turn headings into PDF bookmarks when it exports.
• Your organisation produces official PDFs from a set template or document system, as with tender bids. Ask whoever owns that template instead of assembling the file by hand.
• Policy says certain documents may only be handled in approved desktop software. PDFGym never uploads files, but the rule still applies, so follow it or check with IT.