Combine multiple PDFs and images into one
WhiskFile Merge PDF is a free online tool to combine multiple PDFs and images into one. Files are processed entirely in your browser — nothing is uploaded to any server.
Quick Answer
Combine multiple PDFs and images into one. WhiskFile's Merge PDF is free, works in your browser, and requires no account. Your files never leave your device — all processing happens locally.
Upload your files
Drag and drop PDFs, JPGs, PNGs, or other image files — or pick from Google Drive, Dropbox, or OneDrive.
Arrange and customize
Drag to reorder files, select specific pages, rotate, or interleave pages. Add bookmarks or a table of contents.
Merge and download
Click Merge & Download. Your combined PDF is ready instantly — no upload, no waiting.
Max file size: 50 MB (free) · 500 MB (paid). Processing time: ~5s on average. Batch processing: upload multiple files at once.
Merge PDF runs entirely in your browser — no software to install. Works on any device with a modern browser.
Windows & Mac
Chrome, Firefox, Edge, Safari
iPhone & Android
Safari, Chrome mobile
iPad & Tablets
Full touch support
Unlike server-based tools that upload your documents, WhiskFile processes everything locally in your browser. Your files never leave your device — not even temporarily.
No upload required
Files are processed in your browser — nothing is sent to any server
100% private
No server storage, no data collection, no third-party access
Works offline
Once loaded, works without an internet connection
“I merge dozens of reports weekly. WhiskFile handles it instantly — no software to install, no sign-up hassle.”
Sarah Chen
Project Manager
“Splitting contracts by section used to take ages. Now I drag, drop, and it's done in seconds.”
David Kim
Legal Assistant
Help us improve by sharing your experience with Merge PDF.
Client-side processing
This tool now runs entirely in your browser — files never leave your device.
Result preview & sharing
Preview your processed file before downloading, and share results via a secure link.
There is no file limit — merge as many PDFs and images as you need in a single session, completely free. If your merged PDF is too large, use our PDF compressor to reduce the file size.
No. WhiskFile copies pages directly without re-compressing or altering any content — quality is fully preserved.
Yes. WhiskFile auto-detects encrypted PDFs and processes them using pdf-lib's ignoreEncryption mode. An 'encrypted' badge appears on the file card.
No. WhiskFile processes everything in your browser — files never leave your device. Unlike iLovePDF, Smallpdf, or Adobe, there is zero server upload. Your documents stay completely private.
Yes. WhiskFile natively accepts PDF, JPG, PNG, WebP, BMP, GIF, and TIFF. Images are automatically converted to PDF pages during merging — no separate conversion step needed.
Yes. Use Files view to drag-and-drop entire documents, or switch to Pages view for per-page reordering. You can also select specific page ranges like '1-3, 5, 7-10' from any file. Need to split a PDF first? Use our PDF splitter.
No. WhiskFile works instantly with no account, no signup, and no email required. Just drop your files and merge.
Never. WhiskFile does not add any watermarks, logos, or branding to your merged PDF — free or paid.
Open whiskfile.com/tools/merge-pdf in any mobile browser (Safari, Chrome, Firefox). The interface is fully responsive — drag to reorder, select pages, and download the merged PDF directly on your phone or tablet.
Interleave alternates pages from your files — page 1 from File A, page 1 from File B, page 2 from File A, etc. Perfect for reassembling double-sided scans where front and back pages are in separate PDFs.
Yes. Click the Pages button on any file card and enter page ranges like '1-3, 5, 7-10'. Or switch to Pages view for per-page drag-and-drop.
WhiskFile processes files 100% in your browser — nothing is uploaded to any server. iLovePDF and Smallpdf upload your files to their servers for processing. WhiskFile also has no file limits, no watermarks, and advanced features like interleave mode, table of contents, and 3 bookmark modes — all free.
Yes. WhiskFile is a free browser-based alternative to Adobe Acrobat for merging PDFs. No software installation, no subscription, and no Adobe account needed.
Yes. Merge PDF on WhiskFile is completely free with no account required. Free users get 7 tasks per day with files up to 50 MB. There are no watermarks on any plan. Pro plans ($4.99/month) unlock unlimited tasks, 500 MB files, batch processing, and API access.
Yes. Merge PDF runs entirely in your browser using WebAssembly. Your files are never uploaded to any server — they stay on your device throughout the entire process. No data is transmitted, stored, or accessible to WhiskFile or any third party.
Merge PDF accepts PDF, JPG, PNG, WEBP, BMP, GIF, TIFF files as input and produces PDF output. The maximum file size is 50 MB on the free plan (500 MB for Pro users). There are no page count limits.
See how WhiskFile compares to other PDF tools on features, pricing, and privacy.
How to Merge PDF Files Online — Free Guide
Merging PDF files combines multiple separate PDF documents into a single file, in any order you choose. It takes under a minute online and requires no software installation.
How to Split a PDF Online — Free Step-by-Step Guide
Splitting a PDF divides one document into multiple separate files — by page range, by bookmarks, by file size, or into individual pages. This is useful for sharing specific sections, reducing email attachment size, or separating multi-document scans.
How to Add Bookmarks to a PDF (Make Long PDFs Easy to Navigate)
Add bookmarks and a clickable table of contents to any PDF. Help readers jump to sections instantly — free, browser-based.
How to Add Page Numbers to a PDF (3 Free Methods)
Add page numbers to any PDF in seconds. Choose position, format, starting number, and font — free, no signup, works in your browser.
See how professionals in different industries use this tool.
Chromebook & Linux
Any modern browser
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