Document File Generator
Generate mock documents in various formats for testing workflows.
📄PDF • Structured Content • Max 1000 MB
Compatible with all major applications and editors
Video
Audio
Image
Document
Dummy PDF Generator for Testing
Create fake PDF files of an exact size for upload, email and document processing tests. PDF is already selected below: enter a size and generate.
What's in a Generated PDF
Every file is a valid PDF that opens in any PDF reader. Each page shows its page number, the generation date and placeholder Lorem ipsum text, so you can see at a glance which test file you're looking at.
The number of pages grows with the size you choose: about 20 pages per MB, so a 1 MB file has 20 pages and a 5 MB file has 100. The rest of the requested size is filled with padding after the end of the document, which PDF readers ignore.
Exact File Sizes
Enter any size from 0.01 MB (about 10 KB) up to 1,000 MB and the file comes out at exactly that number of bytes. FileMock uses binary megabytes, so 1 MB = 1,048,576 bytes and 25 MB = 26,214,400 bytes.
Very small sizes are the exception: a PDF needs a minimum structure, so targets below about 7 KB produce the smallest possible file, around 7 KB.
Common Uses for Fake PDF Files
- Upload size limits: generate files just under and just over the limit, for example 24.9 MB and 25.1 MB.
- Large PDF performance: check how viewers, previews and text extraction handle documents with hundreds or thousands of pages.
- Email attachment limits: test what happens when an attachment is larger than the mail provider allows.
- Storage and quota testing: fill a bucket, folder or user quota with files of a known size.
- Document pipelines: run conversion, indexing and virus scanning jobs on realistic files without using real documents.
What It Doesn't Create
Generated PDFs contain text only. If your test needs password-protected PDFs, scanned images, fillable forms or PDF/A archives, use a dedicated PDF tool for those cases.
PDF Generator FAQ
Answers to common questions about generating dummy PDF files for testing.
Open the Document tab, choose PDF in the format list, enter the target size in MB and click Generate PDF. The file is created in your browser and downloads automatically, named after its size (for example document-5mb.pdf).
Yes. They are valid PDF documents with real pages and readable text, so they open in browsers and PDF readers and can be processed like any other PDF.
Up to 1,000 MB. Very large files take longer to generate and need enough free memory in your browser, so start smaller if your device has limited RAM.
FileMock uses binary megabytes: 1 MB = 1,048,576 bytes. Many applications define their limits in decimal megabytes (1,000,000 bytes), so for boundary tests check the exact byte count of the file, for example with wc -c on macOS and Linux.
About 20 pages per MB of target size, with at least one page. For example, 1 MB gives 20 pages and 5 MB gives 100 pages.
No. The PDF is generated entirely in your browser and saved directly to your device. Nothing is sent to FileMock's servers.