View pdf in document server

Docs
1

Dear Support,
I want to integrate document server as an office-file viewer. I’ve tried to build a simple-small html to test open a word file, everything is ok, but after I change the file to pdf, the browser just throw an error:An error has occurred while opening the file.
in Browser’s F12 mode, the error is like below:
Uncaught TypeError: Cannot read properties of undefined (reading ‘skb’)
at window.AscPDF.neg (sdk-all.js:13353:345)
at e.$ri (sdk-all-min.js:1953:72)
at b.Re (sdk-all.js:13283:400)
at d.GIa (sdk-all.js:12459:380)
at d.Hqd (sdk-all.js:12409:10)
at d.B_f (sdk-all.js:12408:438)
at d.Vqi (sdk-all.js:12408:316)
at sdk-all.js:12417:13

my little test html is like below:

ONLYOFFICE Document Editor 
<script type="text/javascript" src="http://docker-based-LAN-server/web-apps/apps/api/documents/api.js"></script>

<script>
    const docEditor = new DocsAPI.DocEditor("placeholder", {
        document: {
            fileType: "pdf",
            key: "Khirz6zTPdff1",
			permissions: {
				edit: false,
			},
            title: "aaa.pdf",
            url: "http://nginx-hosted-LAN-server/aaa.pdf",
        },
        documentType: "pdf",
        token: "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJkb2N1bWVudCI6eyJmaWxlVHlwZSI6InBkZiIsImtleSI6IktoaXJ6NnpUUGRmZjEiLCJ0aXRsZSI6IndlY2hhdC5wZGYiLCJwZXJtaXNzaW9ucyI6eyJlZGl0IjpmYWxzZX0sInVybCI6Imh0dHA6Ly8xMC4xNjguMS43MS93ZWNoYXQucGRmIn0sImRvY3VtZW50VHlwZSI6InBkZiJ9.fhO0_8SKU-elYYKiUfp_lQAcBct258Trx7Bj0496Mlg",
    });
</script>

PS: all my doc file and pdf file is hosted at the same directory, and can be direct access by web browser.
Please help me out, thanks.

2

forgot to mention, the key and token are manually refreshed in every test cycle, so it i think it might not the unique-key related problem.

3

document server version: I’ve tested 8.3.2 and 8.3.1, same error.

4

Hello @JoshuaChang,
Does the issue occur when opening all pdf files?
Please provide full Document Server logs as file after the issue reproduction (/var/log/onlyoffice/documentserver, for Docker - inside the container)

5

Dear @DmitriiV

  1. I’ve tested several pdf files(from 500K to 20M), all of them throw the same error.

  2. under /var/log/onlyoffice/documentserver/docservice/, the out.log have error like below:
    [2025-03-26T09:39:08.475] [ERROR] [localhost] [Khirz6zTPdfe4] [uid-17429757230911] nodeJS - clientLog: changesError: Error: Uncaught TypeError: Cannot read properties of undefined (reading ‘Kkb’)
    Script: http://document-server-ip/8.3.2-a404037cca330194fb4342757634c059/sdkjs/word/sdk-all.js
    Line: 13360:345
    userAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 Edg/134.0.0.0
    platform: Win32
    isLoadFullApi: true
    isDocumentLoadComplete: false
    DocumentInfo:
    Selection: false
    performance.memory: {“totalJSHeapSize”:124474328,“usedJSHeapSize”:96651028,“jsHeapSizeLimit”:4294705152}
    StackTrace: TypeError: Cannot read properties of undefined (reading ‘Kkb’)
    at window.AscPDF.Meg (http://document-server-ip/8.3.2-a404037cca330194fb4342757634c059/sdkjs/word/sdk-all.js:13360:345)
    at e.Hsi (http://document-server-ip/8.3.2-a404037cca330194fb4342757634c059/sdkjs/word/sdk-all-min.js:1953:72)
    at b.Re (http://document-server-ip/8.3.2-a404037cca330194fb4342757634c059/sdkjs/word/sdk-all.js:13290:400)
    at d.OIa (http://document-server-ip/8.3.2-a404037cca330194fb4342757634c059/sdkjs/word/sdk-all.js:12465:380)
    at d.hrd (http://document-server-ip/8.3.2-a404037cca330194fb4342757634c059/sdkjs/word/sdk-all.js:12415:10)
    at d.$_f (http://document-server-ip/8.3.2-a404037cca330194fb4342757634c059/sdkjs/word/sdk-all.js:12414:438)
    at d.Fri (http://document-server-ip/8.3.2-a404037cca330194fb4342757634c059/sdkjs/word/sdk-all.js:12414:316)
    at http://document-server-ip/8.3.2-a404037cca330194fb4342757634c059/sdkjs/word/sdk-all.js:12423:13

  3. under /var/log/onlyoffice/documentserver/, the nginx.error.log have error like below:
    2025/03/26 09:39:10 [error] 12048#12048: *954 open() “/var/www/onlyoffice/documentserver/web-apps/vendor/socketio/socket.io.min.js.map” failed (2: No such file or directory), client: my-client-ip, server: , request: “GET /8.3.2-a404037cca330194fb4342757634c059/web-apps/vendor/socketio/socket.io.min.js.map HTTP/1.1”, host: “document-server-ip”

  4. I’ve checked /var/www/onlyoffice/documentserver/web-apps/vendor/socketio/, there are only 2 files: socket.io.min.js, socket.io.min.js.gz

I have no idea what’s happended and don’t know whether the errors above have connection, if you need any other detailed information, let me know.

Thank you.

6

I’ve figured it out, under document setting, if no height and width parameter, pdf file will throw error(docx file is ok)
so the correct config should be like below:
const docEditor = new DocsAPI.DocEditor(“placeholder”, {
document: {
fileType: “pdf”,
key: “Khirz6zTPdff1”,
permissions: {
edit: false,
},
title: “aaa.pdf”,
url: “http://nginx-hosted-LAN-server/aaa.pdf”,
},
height: “550px”,
width: “100%”,
documentType: “pdf”,
token: “generated-token”,
});

7

So, is the issue resolved now?
Is is rather unusual, I’ve just tested the config without width and height parameters and random pdf file that I used for testing opened without any errors.
In general, it is recommended to specify as many parameters as possible in the config

8

Yes, resolved. Thank you all the same.

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