What if I see “Couldn’t save your settings”?

Your change wasn't saved. Try again.

What if only the messages get bigger?

Message text size changes message text only. To make everything bigger, change the text size in Windows Settings.

What if Ctrl+Plus does not change the text size?

It works on Messages only. Click Messages first. In the photo viewer it zooms the photo.

What if I see “Couldn’t check for updates”?

You see this only with the installer. Check your internet. Then click Check for updates again.

What if I see “Couldn’t install the update”?

You see this only with the installer. TextPort tries again later. Or click Try again.

What if I see “Update ready”?

You see this only with the installer. Click Restart TextPort now. If a backup or export is running, TextPort waits until it is done.

What if none of these problems match mine?

Email support@textportapp.com. Say which step you were on. Say what you saw. We usually reply within a day.

How big can the message text get?

From 90% to 150%. On Messages , press Ctrl+0 to go back to 100%.

What does Open my last backup when TextPort starts do?

It opens your messages at once. Turn it off under Privacy if other people use this PC. TextPort then starts without showing any messages.

What does Voice message transcripts in PDFs do?

It prints the transcript your iPhone made under each voice message. Turn it off under Exports to leave them out of PDFs.

How do I update TextPort?

TextPort from the Microsoft Store updates through the Store. Settings says Updates come from the Microsoft Store. With the installer, click Check for updates at the top of Settings .

How do I share TextPort with someone?

Next to Share TextPort in Settings , click Copy link or Email .

What else is in Settings?

Save new backups to , Open backups folder , Temporary files , Open logs folder , Contact support , Privacy statement , Third-party software , and Keyboard shortcuts .

How to change theme and text size in TextPort for Windows

Windows 3 steps · Updated Nov 10, 2026

Quick answer

In TextPort:

Click the gear at the top right.
Pick a theme under App theme.
Move the slider under Message text size.

Changes apply right away. There is no Save button.

What you need

✓TextPort for Windows

Steps

Click the gear

It is at the top right. Settings opens.

You can also press Ctrl+,.
Pick a theme and a text size

Pick Use system setting, Light, or Dark (1). Move the Message text size slider (2).

You can also press Ctrl+Plus or Ctrl+Minus on Messages.
Turn a switch off if you want

Open my last backup when TextPort starts (1) and Voice message transcripts in PDFs (2) are both on at first.

Done

Your settings are saved. TextPort uses them the next time too.

Problems

What you seeWhat to do

Couldn’t save your settings: Your change wasn't saved. Try again.
Only the messages get bigger.: Message text size changes message text only. To make everything bigger, change the text size in Windows Settings.
Ctrl+Plus does not change the text size.: It works on Messages only. Click Messages first. In the photo viewer it zooms the photo.
Couldn’t check for updates: You see this only with the installer. Check your internet. Then click Check for updates again.
Couldn’t install the update: You see this only with the installer. TextPort tries again later. Or click Try again.
Update ready: You see this only with the installer. Click Restart TextPort now. If a backup or export is running, TextPort waits until it is done.
None of these match.: Email [email protected]. Say which step you were on. Say what you saw. We usually reply within a day.

Questions

: From 90% to 150%. On Messages, press Ctrl+0 to go back to 100%.
: It opens your messages at once. Turn it off under Privacy if other people use this PC. TextPort then starts without showing any messages.
: It prints the transcript your iPhone made under each voice message. Turn it off under Exports to leave them out of PDFs.
: TextPort from the Microsoft Store updates through the Store. Settings says Updates come from the Microsoft Store. With the installer, click Check for updates at the top of Settings.
: Next to Share TextPort in Settings, click Copy link or Email.
: Save new backups to, Open backups folder, Temporary files, Open logs folder, Contact support, Privacy statement, Third-party software, and Keyboard shortcuts.