How to Combine Documents into One PDF for a Job Application

By the Novaxera team · Published 2026-10-18 · 6 min read

Short answer

To combine documents into one PDF for a job application, convert each document to PDF, name the files 01-, 02-, 03- in the order you want, then upload them together to a merge tool. Novaxera does this free: Word to PDF, Images to PDF for scans and photos, Merge PDF to join them, plus tools to delete pages, rotate scans, add page numbers and compress.

Key takeaways

Many application portals accept only one file, so a single well-ordered PDF avoids missing documents.
A common order is cover letter, then CV, then certificates and references, but follow the employer's instructions if they give one.
Novaxera's Merge PDF combines files in the order the browser sends them, so name files 01-, 02-, 03- to control the order.
Delete stray pages, rotate sideways scans and add page numbers before the final check.
Upload limits differ between portals, so check the stated limit and compress only if the file is too large.

Why do job portals often want one PDF?

Many application portals have a single upload field, so everything has to arrive as one file. PDF is the usual choice because it keeps fonts, layout and page breaks the same on every computer, and the person reviewing the application can read it in a browser without special software.

A single PDF also helps the reader. Instead of opening several attachments, a recruiter scrolls through one document in a logical order, and nothing gets separated from the rest of the application.

What order should the documents go in?

A common approach is to put the cover letter first, then the CV, then supporting documents. This is a convention, not a rule. If the job posting or portal asks for a specific order, follow it.

Cover letter (or letter of motivation)
CV or resume
Degree certificates and transcripts
Professional certificates or licenses
References or reference letters, if requested

Within the supporting documents, many applicants put the most relevant item first, for example the qualification named in the job ad.

Step 1: Convert every document to PDF

Each piece of the application needs to be a PDF before merging. How to get there depends on where the document comes from.

Word documents (.docx or .doc): Microsoft Word can save a document as PDF directly. Novaxera's Word to PDF converter does the same online using LibreOffice and keeps text, images, tables, headers and footers in most documents. Fonts missing on the server may be substituted, so check line breaks in the result or use common fonts.
Photos and scans (JPG, PNG, WebP, BMP, TIFF): Novaxera's Images to PDF tool turns one or more images into a PDF with one image per page. For a single PNG, the PNG to PDF converter works the same way.
Documents that are already PDFs: keep them as they are. If one is password-protected, remove the password with Unlock PDF first, using the password you were given.

Images to PDF sizes each page to the image's pixel dimensions, with no A4 fitting or margins. Cropped, straight photos of certificates produce cleaner pages. iPhone HEIC photos are not supported; the iPhone camera's “Most Compatible” setting saves photos as JPG.

Step 2: Name the files and merge them

Rename the PDFs with number prefixes so they sort in the order you want. Novaxera's Merge PDF tool combines files in the order the browser sends them, usually the order shown in the file picker, and there is no drag-to-reorder screen.

Rename the files, for example 01-cover-letter.pdf, 02-cv.pdf, 03-degree.pdf, 04-certificate.pdf.
Open Merge PDF and select all the files together (Ctrl+click on Windows, Cmd+click on Mac) or drag them in at once. At least 2 files are needed, each up to 50 MB.
Run the merge and download the single PDF.
Open it and scroll through to confirm the order.

Pages are copied as-is, so merging does not change their quality.

Step 3: Remove, rotate and number pages

Clean up the merged file so it reads like one document. Three small fixes cover most problems.

Remove unwanted pages: blank pages, duplicate scans or an unneeded back side of a certificate can be removed with Delete PDF Pages by typing page numbers such as 2, 4-6. All other pages are kept as they are.
Fix sideways scans: Rotate PDF turns pages 90° clockwise, 180° or 90° counterclockwise, either all pages or a list like 3, 5. The rotation is a lossless change, so the content is not re-compressed.
Add page numbers: Add Page Numbers offers six positions and formats such as 1, Page 1, Page 1 of N and 1 / N. Page numbers help a reviewer refer to a specific document, especially in a long application.

Add page numbers last, after pages have been deleted, so the numbering matches the final document.

Step 4: Compress if the portal has a size limit

Compress the final PDF only if it is larger than the portal allows. Upload limits vary from portal to portal, so check the limit stated on the application page rather than assuming a number.

Scanned certificates and phone photos are usually what makes an application PDF large. Novaxera's PDF compressor downscales embedded images larger than 1200 px on their longest side and rebuilds the file, while text and vector graphics stay sharp and selectable. Results depend on the file: a text-only CV shrinks little, a file full of scans often shrinks more. The page shows the exact reduction after processing.

If the application goes by email instead, the table of email attachment limits lists the limits of common providers.

Final checklist before you upload

Open the finished PDF and check it page by page before submitting.

The documents appear in the intended order, starting with the cover letter if that is the order you chose.
No blank, duplicate or sideways pages remain.
Text in the CV and cover letter is readable and line breaks look right after conversion.
Scans of certificates are legible when zoomed in.
Page numbers, if added, run correctly from the first page to the last.
The file is within the portal's size limit and has no password, unless the employer asked for one.
The file name is clear, for example firstname-lastname-application.pdf.

Frequently asked questions

Should the cover letter or the CV come first in an application PDF?

The cover letter usually comes first, followed by the CV and then certificates. This is a common convention rather than a fixed rule, and many employers state their own preference. If the job posting or application portal specifies an order, follow that instead. Otherwise, cover letter, CV, then supporting documents gives the reader a natural introduction.

Can Novaxera reorder pages after merging PDFs?

No. Novaxera's Merge PDF has no drag-to-reorder screen and combines files in the order the browser sends them. The reliable way to control order is to rename the files with prefixes such as 01-, 02-, 03- before selecting them. Unwanted pages can be removed afterwards with Delete PDF Pages, and sideways pages fixed with Rotate PDF.

How do I add a photo of a certificate to my application PDF?

Convert the photo to PDF first, then merge it with the other documents. Novaxera's Images to PDF accepts JPG, PNG, WebP, BMP and TIFF and sizes each page to the image's pixel dimensions. Crop and straighten the photo beforehand for a cleaner page. Large photos can make the final PDF big, which Compress PDF can reduce.

What is the maximum file size for a job application PDF?

There is no single maximum, because each application portal sets its own limit. Check the limit stated on the upload page. If the merged PDF is too large, compressing it usually helps most when it contains scans or photos. Novaxera accepts files up to 50 MB per file, which is separate from any portal's upload limit.

Is it safe to merge job application documents on Novaxera?

Novaxera uploads files over an encrypted HTTPS connection and processes them on its servers. The original uploads are deleted as soon as processing finishes, and the merged PDF is deleted automatically within 60 minutes, so download it promptly. Files are not shared or used for anything else, and no account or signup is required to use the tools.