Turn a pile of screenshots into one readable PDF

Twenty-three chat captures and a complaint form

Priya's boiler has been broken for three weeks. Every promise from the letting agent sits in a messaging app on her phone, and she has 21 screenshots of that thread, plus two captures of the agent's emails taken on her laptop. The housing complaint form she is filling in tonight allows one attachment, PDF only, no larger than 10 MB.

The caseworker who opens it will read it on a monitor, top to bottom, looking for dates. So the job is not just "make a PDF". It is: keep the messages in the order they were sent, make every timestamp legible, and leave out the other conversations and notifications that happened to be on screen. The rest of this page follows her set from phone to upload.

Prepare the captures before they become pages

Screenshots carry more than you meant to share. Five minutes with the phone's own crop tool saves an awkward conversation later:

• Crop away the status bar, banners from other apps and the keyboard if it was open.
• Check each capture still shows a date or time; a message with no visible timestamp proves little.
• Cover or cut out other people's names and numbers that have nothing to do with the complaint.
• When captures come from two devices, rename them so they interleave correctly, for example 01-phone.png, 02-laptop.png, 03-phone.png.
• Leave them as PNG. Saving a screenshot as JPEG blurs the edges of letters, which is the one thing a text capture cannot afford.

Building the PDF in PDFGym

1. Open PNG to PDF and press Choose images, or drag the captures from a folder onto the page. If a few of them are JPG, use Images to PDF instead, which takes both formats in one run.
2. Read the list. Each row shows a small preview, the file name and the pixel size, so a capture from the wrong conversation is easy to spot and remove with its cross button.
3. Use the up and down arrows until the first message of the thread sits on row 1. The order on screen is the page order in the file.
4. Pick the page size and margins from the table below. For Priya, a caseworker reading on a monitor, that is Match image with no margin.
5. Press Create PDF. The tool opens the finished file again and checks the page count, page sizes and the pixel dimensions of every embedded capture before it shows the Download button.
6. Download and rename the file to something the caseworker will understand, such as boiler-messages-oct.pdf.

Nothing is uploaded while this happens. The captures are read and the PDF is written inside the browser tab, so the only upload is the one Priya makes to the complaint form.

Pick a page fit for how the PDF will be read

One thing to expect with Match image: the page is sized from the pixel count at 96 pixels per inch. A phone capture of 1,170 by 2,532 pixels therefore becomes a page about 12 by 26 inches. That looks odd in the document properties but reads perfectly on screen, because viewers zoom to fit. Extremely tall captures are drawn smaller on the page to stay inside the PDF page size limit of 200 inches, while every original pixel stays embedded.

Where screenshot PDFs go wrong

A capture is refused. PNG to PDF accepts PNG only. Some phones and capture apps save screenshots as JPG, so either switch to Images to PDF for the whole set or convert the odd ones out first.

Messages appear out of sequence. Captures from two devices do not interleave by name, and the list keeps the order your system handed the files over. Fix the order with the arrows before you build, or afterwards in Organize pages, where pages can be dragged.

Someone expects to search the text. Words in a screenshot are pixels. The PDF will look right but a search for "boiler" finds nothing, because no text recognition is run. If searchability matters, say so in your covering note or include the original emails as well.

The file is over the upload limit. PNG is lossless and the converter adds no compression, so 23 tall captures can easily pass 10 MB. Run the finished PDF through Compress PDF and pick a target such as 2 MB, or type the exact cap the form gives you.

Transparent corners worry you. They are kept as transparency, not filled with black. Viewers show the blank page behind them, which normally looks white.

When a PDF of captures is the wrong thing to send

If an investigator, a platform's trust team or a lawyer asks for the original screenshot files, send those as well. Originals carry details a PDF page does not, and the person asking may need them to judge whether a capture was altered.

Many messaging apps can export a whole conversation as a file with every timestamp in text form. For a long dispute that is often stronger than a stack of pictures, and it is searchable. For a bug that only shows up while something moves, a short screen recording explains more than ten stills. And when a support desk or ticket system accepts several attachments, adding the PNG files directly is quicker for everyone. For photos rather than screen captures, the photo bundling guide covers camera formats and rotation.