The PDF Image Converter is a dual-purpose utility designed to handle conversions between document and image formats. It operates in two distinct directions: compiling multiple individual image files into a single PDF document, or extracting the pages of a single PDF document to save them as individual image files.
Local Browser-Based Processing and Privacy
When converting files, privacy and data security are primary considerations. This tool processes all files directly within your web browser. Because the conversion execution occurs locally on your device, your PDFs and images are processed in your browser and nothing is uploaded to BroBroGo.
This local processing model dictates how files are handled:
- No Uploads: Your source files never leave your local machine.
- Local Generation: The output files (whether a compiled PDF or a ZIP archive of images) are generated directly by your browser's engine.
- No Offline Guarantee: While processing occurs locally, the tool is accessed via the web interface.
Images to PDF Conversion Mode
The tool starts in "Images to PDF" mode by default. This mode is designed for compiling separate image files into a single, multi-page PDF document for archiving, sharing, or printing.
Input Specifications and Limits
- Supported Formats: JPG, PNG, WebP, AVIF, GIF, HEIC, and HEIF.
- Quantity Limit: You can select and convert up to 20 images at a time.
- File Size Limit: Each individual image file must be 50 MB or smaller.
Interface Rules and Output
If no files are selected, the "Create PDF" and "Clear" buttons remain disabled. Once files are loaded and processed, the tool displays the conversion results with the following metrics:
- Source: The original combined size of the input images.
- Output: The final file size of the created PDF.
- Pages: The total number of pages in the created PDF.
- Summary: Displays the text "Created
{pages}page(s):{original}->{output}". - Download: A button to save the compiled PDF to your local storage.
PDF to Images Conversion Mode
In "PDF to images" mode, the tool extracts pages from a document and converts them into separate image files. This is useful for extracting visual assets, preparing slides for presentations, or repurposing document pages for web content.
Input Specifications and Limits
- Supported Input: Exactly one PDF file.
- File Size Limit: The PDF file must be 50 MB or smaller.
- Page Limit: The PDF must not exceed 500 pages. If a PDF has more than 500 pages, the message "This PDF has more than
{max}pages, so it is too large to export here." is displayed.
Image Format Selection: PNG vs. JPG
When exporting PDF pages to images, you can choose between PNG and JPG output formats. The choice depends on the content of your PDF:
- PNG (Portable Network Graphics): This format uses lossless compression. PNG keeps sharp text and flat graphics clean, making it ideal for text-heavy documents, digital diagrams, and vector layouts.
- JPG (Joint Photographic Experts Group): This format uses lossy compression. JPG is smaller for scanned pages or photo-heavy PDFs. When JPG is selected, a quality slider controls the tradeoff between quality and file size. Higher quality values produce larger JPG files, while lower values compress the file further at the expense of visual clarity.
Interface Rules and Output
The "Export pages" button is disabled if no PDF file is selected. After processing, the interface displays:
- Source: The original size of the PDF.
- Output: The total combined size of the exported images.
- Pages: The number of pages exported.
- Dimensions: The pixel dimensions of the exported images.
- Summary: Displays the text "Created
{pages}page(s):{original}->{output}". - Download Options: You can use the "Download" button to save individual images, or click "Download all (.zip)" to download all exported images packaged together in a single ZIP archive.
Error Handling and Validation Rules
The tool validates all inputs before and during processing to prevent failures. If an input violates a rule, specific error messages are displayed:
| Scenario | Error Message |
|---|---|
| No files selected when starting | "Choose at least one file." |
| Selecting more than 20 images | "Choose up to {max} images at a time." |
| File exceeds the 50 MB limit | "Each file must be {max} or smaller." |
| Selecting an unsupported image format | "Choose image files: JPG, PNG, WebP, AVIF, GIF, HEIC or HEIF." |
| Selecting an unsupported PDF format | "Choose one PDF file." |
| General processing failure of a file | "Conversion failed. Try another file." |
| Multiple files fail to process | "{count} file(s) could not be processed." |
| Uploading a 0-byte file | "This file is empty." |
| PDF is password-protected | "This PDF is encrypted or password-protected." |
| Corrupted or mislabeled PDF | "This file could not be opened as a PDF. It may be corrupted or mislabeled." |
| File type mismatch for selected mode | "This file type is not supported for the selected direction." |
| Corrupted or unreadable image | "This image could not be decoded. It may be corrupted or not actually an image." |
| PDF exceeds 500 pages | "This PDF has more than {max} pages, so it is too large to export here." |
| Unspecified conversion failure | "This file could not be converted." |
Frequently Asked Questions
Do these files get uploaded?
No. The conversion runs in your browser, and downloads are generated locally.
What quality should I choose for PDF pages?
PNG keeps sharp text and flat graphics clean. JPG is smaller for scanned pages or photo-heavy PDFs, and the quality slider controls that tradeoff.
Can it convert password-protected PDFs?
No. Encrypted PDFs are declined with a clear message instead of trying to bypass the password.