How to Stamp Image Files as Exhibits
ExhibitPrep works with PDFs, so JPEG, PNG, TIFF, and other image files need a quick conversion step first — then stamping takes under a minute. The conversion is free using tools built into macOS and Windows or free online services.
- ExhibitPrep accepts PDF files only; convert JPEG, PNG, TIFF, or other images to PDF before uploading.
- macOS Preview converts any image to PDF losslessly via File → Export as PDF — no third-party tools needed.
- Windows users can convert any image to PDF via the Print dialog: select "Microsoft Print to PDF" as the printer.
- Free online tools iLovePDF (ilovepdf.com/jpg_to_pdf) and Smallpdf (smallpdf.com/jpg-to-pdf) convert images to PDF in seconds.
- Converting an image to PDF and then stamping it with ExhibitPrep does not reduce image resolution or add compression artifacts.
- Multiple images can be converted to individual PDFs and then batch-stamped in ExhibitPrep in a single session.
- After stamping, ExhibitPrep can merge multiple image exhibit PDFs into one combined PDF with an optional table of contents.
- No files are uploaded to a server during stamping — all PDF processing runs in your browser, keeping photograph exhibits private.
Free Image-to-PDF Conversion Tools
macOS Preview
How: Open image → File → Export as PDF
Best for: Mac users, lossless quality
Cost: Built in
Windows Print to PDF
How: Open image → Print → Microsoft Print to PDF
Best for: Windows users, quick conversion
Cost: Built in
iLovePDF / Smallpdf
How: Upload image on website, download PDF
Best for: Any device, bulk conversion
Cost: Free tier available
5-Step Process for Stamping Image File Exhibits
Convert Your Image to PDF
Use any free method to convert your image to PDF. macOS users: open the image in Preview, click File → Export as PDF, choose a save location. Windows users: open the image, press Ctrl+P, select "Microsoft Print to PDF" from the printer list, and click Print. Both methods embed the image at full resolution with no quality loss. For bulk conversion of many images, iLovePDF and Smallpdf's online tools can process multiple files at once.
Upload the PDF to ExhibitPrep
Click "Upload Files" in ExhibitPrep and select the PDF created from your image. You can upload multiple image PDFs simultaneously — drag all of them into the upload zone at once. ExhibitPrep will list each file as a separate exhibit and apply sequential labels when you stamp the batch.
Select an Exhibit Stamp Template
Choose a template that matches your role in the case. "Plaintiff's Exhibit" stamps sequentially with numbers (1, 2, 3), and "Defendant's Exhibit" stamps with letters (A, B, C). If you are stamping photographic evidence, the Deposition template lets you add the date of the photograph or the deponent's name alongside the exhibit label.
Position the Stamp on the Image
Drag the stamp preview to the bottom-right corner. For landscape photographs, verify the stamp does not cover important content near the right edge — zoom the preview to check. You can also adjust the stamp's horizontal or vertical position using keyboard arrow keys for precise placement. The position is applied consistently to all exhibits in the batch.
Download the Stamped Exhibit PDF
Click "Download" to save the stamped exhibit. For a batch of multiple image exhibits, click "Download All" to receive a ZIP file containing each stamped PDF named with its exhibit label. Image quality is identical to the PDF you uploaded — ExhibitPrep does not recompress images during stamping.
Batch-stamp photograph and image exhibits in one session
Convert images to PDF, upload them all at once, and stamp each with sequential exhibit labels — download a ZIP of court-ready files in minutes.
Supported Image Formats and Conversion Notes
Image Formats That Convert Cleanly
- JPEG / JPG — photographs, camera images
- PNG — screenshots, diagrams, document scans
- TIFF — high-resolution medical and legal scans
- HEIC — iPhone photos (convert to JPEG first)
- BMP — uncompressed Windows bitmap
- WebP — web screenshots (convert via online tool)
Quality Tips
- Use macOS or Windows Print to PDF for lossless conversion
- Avoid compressing below 150 DPI — courts require legible exhibits
- HEIC iPhone photos: convert to JPEG first via AirDrop or online tool
- Very large TIFF files: iLovePDF compresses well without visible loss
- After stamping, check e-filing size limits (courts cap at 10–35 MB)
- For multi-image exhibits, merge all images to one PDF before uploading
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Frequently Asked Questions
What is the best way to convert an image to PDF before stamping?
The quickest method depends on your device. On macOS, open the image in Preview and choose File → Export as PDF — this creates a lossless PDF with no quality reduction. On Windows, open the image, press Ctrl+P, select "Microsoft Print to PDF" as the printer, and click Print. Free online options include iLovePDF (ilovepdf.com/jpg_to_pdf) and Smallpdf (smallpdf.com/jpg-to-pdf). All of these preserve full image resolution. Avoid tools that compress to 72 DPI, as courts expect legible exhibits.
Does converting a JPEG or PNG to PDF reduce image quality?
No, if you use a lossless conversion method. macOS Preview's "Export as PDF" and Windows "Print to PDF" both embed the image at its original resolution without recompression. Some online tools do apply JPEG compression during conversion — to avoid this, look for options labeled "lossless" or "high quality." Once converted to PDF and stamped by ExhibitPrep, the image data is not recompressed, so quality is preserved throughout.
Can I stamp multiple images as exhibits in one session?
Yes. Convert all of your images to individual PDFs first, then upload all of them to ExhibitPrep at once. The batch stamping feature applies sequential labels (Exhibit 1, Exhibit 2, Exhibit 3 or Exhibit A, Exhibit B, Exhibit C) to each document automatically. Download a ZIP file containing all stamped exhibits at once. For 20 or more exhibits, this typically saves 30–60 minutes compared to stamping each file individually.
Can I combine multiple image exhibits into a single PDF?
Yes. After uploading all of your image-derived PDFs to ExhibitPrep, enable the "Combine exhibits" option. ExhibitPrep will stamp each exhibit, then merge all of them into a single PDF in the order shown. You can also add a table of contents and slipsheet separator pages between exhibits. The combined file is court-ready for filing or printing as a trial binder.
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