CS

Loading workspace...

Preparing your tools

Tool intelligence

Upload and convert workflow

Upload, process in queue, and download production-ready outputs in minutes.

Live traffic Reliable processing Fast avg
PDFs

Merge PDF

Merge multiple PDF files into a single document.

Free to use
Queue-powered
🔒 Privacy-first

How it works

1

Upload your PDFs

Select two or more PDF files. Use Pro to upload larger batches.

2

We merge them in order

Files are combined in the order you uploaded them into a single PDF document.

3

Download the merged PDF

Get a single PDF containing all pages from every file you uploaded.

Quick start

Start in under 10 seconds: choose file, process, download.

Works in your browser. Files are automatically cleaned up based on your plan retention settings.

Step 1

Upload

Drag files in or browse from your device.

Step 2

Process

Queue runs the conversion with smart defaults.

Step 3

Download

Get your output instantly when done.

All-time runs

Live traffic

30-day success

Reliable processing

Average speed

Fast avg

Files auto-deleted
Secure processing
Works in your browser

Upload your PDF

or

Max file size: 10MB

Max files per run: 1

Supported formats: depends on the tool

Upload two or more PDF files, up to 10MB per file. Files will be merged in the order shown.

images uploaded successfully

Ready to resize

1 image uploaded successfully

Ready to process

images uploaded successfully

Ready to process

Resize Image input ready
Resize input preview

Ready to resize

Advanced options

Saved tool settings

Save your current settings and apply them with one click.

Pipeline Builder

Build a multi-step flow (compress, convert, resize, merge) and run it in one upload.

Saved presets

Sign in to save and reuse pipeline presets.

Document data

Keep the first PDF as the document shell so its metadata, outlines, and page labels survive when possible.

Delivery

Linearized PDFs open faster in browsers and feel better when shared as links.

Balanced keeps defaults, Smaller pushes harder on stream/object compression, Print stays conservative for compatibility.

Files are uploaded and processed in the background. Results appear in seconds.

Your files are ready. Download:

Download all (ZIP)
Polling slowed down or failed.

Input summary

PDF compression summary

Original size

Compressed size

Reduced by

Pages

Success! Your PDF pages were converted successfully.

Download your JPG images now or save them to your workspace.

Success! Your PDFs were merged successfully.

Download your merged PDF now or save it to your workspace.

Success! Your PDF was split successfully.

Download your extracted pages now or save them to your workspace.

Success! Your JPG images were combined into a PDF. Success! Your PDF is ready.

Download your output now or save it to your workspace.

CSV processing summary

Input rows

Output rows

Output files

Rows removed

Output size

⚡ Process faster with Pro

Higher limits, priority processing, longer retention, and batch uploads.

Upgrade to Pro
More runs/day
Bigger files
Longer retention
Priority processing

⚡ Process files faster with Pro

You downloaded this run. Upgrade to Pro for priority processing, batch uploads, and saved history.

Upgrade to Pro

Share this result

Help teammates skip manual conversions and reuse this exact output.

Smart next steps

Based on this run, here are two high-impact follow-up actions.

You might also like

Try these related tools to further enhance your file

🔗 Related PDF tools 4 related tools

About Merge PDF

Assembling a single PDF from multiple files is a common step in document workflows: combining a cover page with a report body, merging signed form pages returned separately, or packaging multiple invoices into one archive for a client. The CodeStorms Merge PDF tool combines any n...

Combine a cover letter, CV, and portfolio pages into one PDF for a job application. Merge multiple signed contract pages returned separately by different signatories. Assemble a monthly report from individual section PDFs exported by different team members. Package multiple invoices into a single PDF before attaching them to an accounting record.

Related guides and workflows

📦 Supported formats 1 file types

PDF

Frequently asked questions 4 answers

Free plan supports merging up to 5 files at once. Pro removes this limit.

Yes. Pages appear in the merged PDF in exactly the order you uploaded the files.

No. The merge keeps the original quality of each page. If you want to reduce file size, run the merged PDF through our PDF Compressor afterwards.

Currently, password-protected PDFs must be unlocked before merging. Use PDF utilities that handle decryption first.