Merge PDF Files

Combining PDFs is one of the most common things people do with documents — stitching a cover letter to a resume, joining scanned receipts into one expense report, putting a contract back together after it was signed page-by-page. Almost every online PDF tool asks you to upload your files to their server to do this. yourpdfeditor does not.

When you drop your PDFs onto the dropzone above, the files are read into your browser and then merged using pdf-lib, a JavaScript library that runs entirely inside the browser tab. The result is built in memory and handed back to you as a download. At no point do the contents of your documents touch our infrastructure — there is no upload endpoint, no temporary storage bucket, no “we delete after an hour” promise to take on faith.

That matters most when your PDFs are sensitive: signed contracts, ID scans for a rental application, medical records, tax returns, payroll stubs, bank statements. The fewer servers that see those documents, the smaller your exposure if one of those services is breached. With yourpdfeditor, the answer to “who has a copy of this PDF?” is simple: you do.

A few common cases where combining PDFs into a single file is worth the small effort:

• Job applications. Many ATS systems prefer or require one PDF that contains cover letter, resume, references, and writing samples in that order. Merging them locally avoids the awkwardness of uploading your resume to a third-party tool.
• Expense reports. Scan a stack of receipts page by page, then merge the outputs into a single PDF to attach to your reimbursement form.
• Returning a signed contract. If you signed pages individually — say, initialing each page on a tablet — merging them back into one document gives the other party a single, archivable artifact.
• Building a packet for a meeting.Agenda, slide deck export, supporting documents, last quarter's report: one merged PDF is easier to email than five attachments.
• Compiling lecture notes. Combine handouts, slides, and your own scans of whiteboard photos into a single study packet per course.

The core privacy guarantee is structural, not policy-based: yourpdfeditor has no API endpoint that accepts your PDF files. Even if we wanted to receive your documents, the page does not contain code to send them anywhere. Everything you see in the merge tool above runs in JavaScript inside your tab.

We do use Google AdSense to fund the project, which means Google places its own cookies for ad personalization (you can opt out of that in your Google Ads settings). Importantly, those ads are based on your browsing context, not on the contents of the documents you merge — because Google never sees the documents either. See our privacy policy for the full breakdown.